{"id":2572,"date":"2024-06-06T18:06:05","date_gmt":"2024-06-06T18:06:05","guid":{"rendered":"https:\/\/odeacademy.in\/?p=2572"},"modified":"2025-08-02T11:15:29","modified_gmt":"2025-08-02T11:15:29","slug":"general-science-mcqs","status":"publish","type":"post","link":"https:\/\/thequickknowledge.com\/exam\/general-science-mcqs\/","title":{"rendered":"General Science MCQs for Competitive Exams"},"content":{"rendered":"<hr \/>\n<h4 style=\"text-align: center;\"><strong>General Science Question and Answer<\/strong><\/h4>\n<hr \/>\n<ul>\n<li>Indian Institute of Forest Management (IIFM), Bhopal<\/li>\n<li>Forest Research Institute, Dehradun<\/li>\n<li>Wildlife Institute of India (WII), Dehradun<\/li>\n<\/ul>\n<p><strong data-start=\"191\" data-end=\"242\">Q) Medha Patkar is related to which movement?<\/strong> <strong data-start=\"243\" data-end=\"250\">(A)<\/strong> Chipko Movement <strong data-start=\"267\" data-end=\"274\">(B)<\/strong> Narmada Bachao Andolan <strong data-start=\"298\" data-end=\"305\">(C)<\/strong> Naxalite Movement <strong data-start=\"324\" data-end=\"331\">(D)<\/strong> Harm to agricultural land<\/p>\n<p>Q) Which of the following is the main component of natural gas? (A) Ethane (B) Butane (C) Carbon mono-oxide (D) <strong>Methane<\/strong><\/p>\n<p>Q) The Indian Institute of Ecology and Environment is located at \u2013 (A) <strong>New Delhi<\/strong> (B) Mumbai (C) Kolkata (D) Thiruvananthapuram<\/p>\n<p><strong data-start=\"468\" data-end=\"476\">Q)<\/strong> When a ray of light travels from a denser medium to a rarer medium then \u2013 <strong data-start=\"551\" data-end=\"558\">(A)<\/strong> It speeds up and bends away from the normal <strong data-start=\"603\" data-end=\"610\">(B)<\/strong> It speeds up and bends towards the normal <strong data-start=\"653\" data-end=\"660\">(C)<\/strong> It slows down and bends away from the normal <strong data-start=\"706\" data-end=\"713\">(D)<\/strong> It slows down and bends towards the normal<\/p>\n<p>Q) The time taken to reach the sunlight up to the surface of Earth is approximately \u2013 (A) 4.2 sec (B) 4.8 sec (C) 8.5 minutes (D) 3.6 hrs<\/p>\n<p>Q) The speed of light will be minimum while passing through \u2013 (A) Glass (B) Vacuum (C) Water (D) Air<\/p>\n<p><strong data-start=\"960\" data-end=\"968\">Q)<\/strong> Which Indian scientist is recognised by &#8216;UNEP&#8217; as Father of Economic Ecology? <strong data-start=\"1047\" data-end=\"1054\">(A)<\/strong> B.P. Pal <strong data-start=\"1064\" data-end=\"1071\">(B)<\/strong> Yash Pal <strong data-start=\"1081\" data-end=\"1088\">(C)<\/strong> M.S. Swaminathan <strong data-start=\"1106\" data-end=\"1113\">(D)<\/strong> R. Mishra<\/p>\n<p>Q) Human eye is most sensitive to visible light of the wavelength: (A) 6050 \u00c5 (B) 5500 \u00c5 (C) 4500 \u00c5 (D) 7500 \u00c5<\/p>\n<p>Q) Among the colours mentioned below, the eye is most sensitive to colours between: (A) Red and green (B) Orange and yellow (C) Green and blue (D) Yellow and green<\/p>\n<p><strong data-start=\"100\" data-end=\"151\">Q) The most important indoor air pollutant is \u2013<\/strong> <strong data-start=\"152\" data-end=\"159\">(A)<\/strong> Sulpher Dioxide <strong data-start=\"176\" data-end=\"183\">(B)<\/strong> Carbon Dioxide <strong data-start=\"199\" data-end=\"206\">(C)<\/strong> Nitrogen Dioxide <strong data-start=\"224\" data-end=\"231\">(D)<\/strong> Radon gas<br data-start=\"241\" data-end=\"244\" \/><strong data-start=\"244\" data-end=\"277\" data-is-only-node=\"\">Q) Cigarette smoke contains \u2013<\/strong> <strong data-start=\"278\" data-end=\"285\">(A)<\/strong> Carbon monoxide dioxycine <strong data-start=\"312\" data-end=\"319\">(B)<\/strong> Carbon monoxide and nicotine <strong data-start=\"349\" data-end=\"356\">(C)<\/strong> Carbon monoxide and Benzene <strong data-start=\"385\" data-end=\"392\">(D)<\/strong> Dioxycine and Benzene<br data-start=\"414\" data-end=\"417\" \/><strong data-start=\"417\" data-end=\"474\">Q) &#8216;Ringelmann scale&#8217; is used to measure density of \u2013<\/strong> <strong data-start=\"475\" data-end=\"482\">(A)<\/strong> Smoke <strong data-start=\"489\" data-end=\"496\">(B)<\/strong> Polluted water <strong data-start=\"512\" data-end=\"519\">(C)<\/strong> Fog <strong data-start=\"524\" data-end=\"531\">(D)<\/strong> Noise<br data-start=\"537\" data-end=\"540\" \/><strong data-start=\"540\" data-end=\"625\">Q) In which year was &#8216;The Air (Prevention and Control of Pollution) Act&#8217; enacted?<\/strong> <strong data-start=\"626\" data-end=\"633\">(A)<\/strong> 1980 <strong data-start=\"639\" data-end=\"646\">(B)<\/strong> 1974 <strong data-start=\"652\" data-end=\"659\">(C)<\/strong> 1981 <strong data-start=\"665\" data-end=\"672\">(D)<\/strong> 1986<\/p>\n<p><strong data-start=\"1285\" data-end=\"1369\">Q) In which of the following creatures is haemoglobin dissolved in the plasma? <\/strong><strong data-start=\"1372\" data-end=\"1379\">(a)<\/strong> Frog <strong data-start=\"1387\" data-end=\"1394\">(b)<\/strong> Fish <strong data-start=\"1402\" data-end=\"1409\">(c)<\/strong> Human <strong data-start=\"1418\" data-end=\"1425\">(d)<\/strong> Earthworm<\/p>\n<p><strong data-start=\"279\" data-end=\"326\">Q) What is the basic feature of an antigen?<\/strong> <strong data-start=\"327\" data-end=\"334\">(A)<\/strong> It induces formation of haemoglobin <strong data-start=\"371\" data-end=\"378\">(B)<\/strong> It induces formation of antibodies <strong data-start=\"414\" data-end=\"421\">(C)<\/strong> It destroys insulin <strong data-start=\"442\" data-end=\"449\">(D)<\/strong> It acts against the antibodies<\/p>\n<p><strong>Q) The arteries supplying blood to the heart are called \u2013<\/strong> (a) Carotid arteries (b) Hepatic arteries (c) Coronary arteries (d) Pulmonary arteries<\/p>\n<p><strong>Q)<\/strong> <strong data-start=\"149\" data-end=\"208\">How many pairs of nerves arise from the spinal cord? <\/strong>(a) 13 (b) 31 (c) 33 (d) 12<\/p>\n<p><strong>Q) Which of the following glands in the human body acts both as an endocrine and exocrine gland? <\/strong>(A) Adrenal gland (B) Lacrimal gland <strong>(C) Pancreas<\/strong> (D) Thyroid<\/p>\n<p><strong data-start=\"867\" data-end=\"957\">Q) Which of the following hormones play a role in release of milk from mammary glands?<\/strong> <strong data-start=\"958\" data-end=\"965\">(A)<\/strong> Andrenaline <strong data-start=\"978\" data-end=\"985\">(B)<\/strong> Thyroxine <strong data-start=\"996\" data-end=\"1003\">(C)<\/strong> Progesterone <strong data-start=\"1017\" data-end=\"1024\">(D)<\/strong> Oxytocin<\/p>\n<p><strong data-start=\"161\" data-end=\"219\">Q) Which one of the following is a female sex hormone?<\/strong> <strong data-start=\"220\" data-end=\"227\">(A)<\/strong> Androsterone <strong data-start=\"241\" data-end=\"248\">(B)<\/strong> Testosterone <strong data-start=\"262\" data-end=\"269\">(C)<\/strong> Estrone <strong data-start=\"278\" data-end=\"285\">(D)<\/strong> Thyroxine<\/p>\n<p><strong data-start=\"1180\" data-end=\"1220\">Q) The main factor of evolution is &#8211;<\/strong> <strong data-start=\"1221\" data-end=\"1228\">(A)<\/strong> Mutation <strong data-start=\"1238\" data-end=\"1245\">(B)<\/strong> Achieved quality <strong data-start=\"1263\" data-end=\"1270\">(C)<\/strong> Sexual reproduction <strong data-start=\"1291\" data-end=\"1298\">(D)<\/strong> <strong>Natural selection<\/strong><\/p>\n<ul>\n<li>Water Pollution act, 1974<\/li>\n<li>Forest (Conservation) Act, 1980<\/li>\n<li>Air Pollution Act, 1981<\/li>\n<li>Environment Protection Act, 1986<\/li>\n<\/ul>\n<p><strong data-start=\"60\" data-end=\"136\">Q) India&#8217;s first National Action Plan on Climate Change was released in:<\/strong> <strong data-start=\"137\" data-end=\"144\">(A)<\/strong> 2008 A.D. <strong data-start=\"155\" data-end=\"162\">(B)<\/strong> 2012 A.D. <strong data-start=\"173\" data-end=\"180\">(C)<\/strong> 2014 A.D. <strong data-start=\"191\" data-end=\"198\">(D)<\/strong> 2015 A.D.<\/p>\n<p><strong data-start=\"261\" data-end=\"387\">Q) Which one of the following naturally occurring greenhouse gases causes the highest percentage of the greenhouse effect?<\/strong> <strong data-start=\"388\" data-end=\"395\">(A)<\/strong> Carbon Dioxide <strong data-start=\"411\" data-end=\"418\">(B)<\/strong> Methane <strong data-start=\"427\" data-end=\"434\">(C)<\/strong> Ozone <strong data-start=\"441\" data-end=\"448\">(D)<\/strong> Water Vapour<\/p>\n<p><strong>Greenhouse Gases<\/strong> &#8211; carbon dioxide (CO\u2082), methane (CH\u2084), nitrous oxide (N\u2082O), chlorofluorocarbons (CFCs), hydrofluorocarbons (HFCs), perfluorocarbons (PFCs), and sulfur hexafluoride (SF\u2086).<\/p>\n<ul>\n<li data-start=\"93\" data-end=\"137\"><strong data-start=\"93\" data-end=\"128\">Cartagena Protocol (<\/strong>Biosafety<strong data-start=\"93\" data-end=\"128\">)<\/strong> \u2013 2000<\/li>\n<li data-start=\"93\" data-end=\"137\"><strong style=\"font-size: 16px;\" data-start=\"141\" data-end=\"198\">Stockholm Convention (<\/strong>Persistent Organic Pollutants<strong style=\"font-size: 16px;\" data-start=\"141\" data-end=\"198\">)<\/strong><span style=\"font-size: 16px;\"> \u2013 2001 <\/span><\/li>\n<li data-start=\"93\" data-end=\"137\"><strong style=\"font-size: 16px;\" data-start=\"211\" data-end=\"275\">Montreal Protocol (<\/strong>Ozone Layer<strong style=\"font-size: 16px;\" data-start=\"211\" data-end=\"275\">)<\/strong><span style=\"font-size: 16px;\"> \u2013 1987 <\/span><\/li>\n<li data-start=\"93\" data-end=\"137\"><strong style=\"font-size: 16px;\" data-start=\"288\" data-end=\"324\">Kyoto Protocol (<\/strong>Climate Change<strong style=\"font-size: 16px;\" data-start=\"288\" data-end=\"324\">)<\/strong><span style=\"font-size: 16px;\"> \u2013 1997 (Carbon Credit)<\/span><\/li>\n<\/ul>\n<p data-start=\"1075\" data-end=\"1235\"><strong data-start=\"249\" data-end=\"388\">Q) Among the mathematical indices for measuring biodiversity, which one shows the mean species diversity in a habitat at a local scale?<\/strong> <strong data-start=\"389\" data-end=\"396\">(A)<\/strong> Alpha index <strong data-start=\"409\" data-end=\"416\">(B)<\/strong> Beta index <strong data-start=\"428\" data-end=\"435\">(C)<\/strong> Gamma index <strong data-start=\"448\" data-end=\"455\">(D)<\/strong> None of these<\/p>\n<p data-start=\"1075\" data-end=\"1235\"><strong data-start=\"1075\" data-end=\"1131\">Q) Biosphere reserves are areas for conservation of-<\/strong> <strong data-start=\"1132\" data-end=\"1139\">(A)<\/strong> Grasslands <strong data-start=\"1151\" data-end=\"1158\">(B)<\/strong> Agriculture production <strong data-start=\"1182\" data-end=\"1189\">(C)<\/strong> Atmospheric balance <strong data-start=\"1210\" data-end=\"1217\">(D)<\/strong> Genetic Variation<\/p>\n<p data-start=\"1237\" data-end=\"1371\"><strong data-start=\"1237\" data-end=\"1277\">Q) Cartagena protocol is related to:<\/strong> <strong data-start=\"1278\" data-end=\"1285\">(A)<\/strong> Bio-safety agreement <strong data-start=\"1307\" data-end=\"1314\">(B)<\/strong> Pollution <strong data-start=\"1325\" data-end=\"1332\">(C)<\/strong> Ozone depletion <strong data-start=\"1349\" data-end=\"1356\">(D)<\/strong> Climate Change<\/p>\n<p data-start=\"1480\" data-end=\"1585\"><strong data-start=\"52\" data-end=\"148\">Q) Which one of the following is an important strategy for the conservation of biodiversity?<\/strong> <strong data-start=\"149\" data-end=\"156\">(A)<\/strong> Biosphere Reserves <strong data-start=\"176\" data-end=\"183\">(B)<\/strong> Botanical Gardens <strong data-start=\"202\" data-end=\"209\">(C)<\/strong> National Parks <strong data-start=\"225\" data-end=\"232\">(D)<\/strong> Wild Life Sanctuaries<\/p>\n<p data-start=\"1480\" data-end=\"1585\">\u21d2 India has four bio-diversity hot spots- Eastern Himalayas, Western Ghats, Indo-Myanmar border and Sundaland.<\/p>\n<p data-start=\"1480\" data-end=\"1585\"><strong data-start=\"144\" data-end=\"262\">Q) Which one of the following is the correct order of biological organization ranging from organism to biosphere?<\/strong> <strong data-start=\"263\" data-end=\"270\">(A)<\/strong> Population\u2013Ecosystem\u2013Community\u2013Landscape <strong data-start=\"312\" data-end=\"319\">(B)<\/strong> Landscape\u2013Community\u2013Ecosystem\u2013Population <strong data-start=\"361\" data-end=\"368\">(C)<\/strong> Population\u2013Community\u2013Ecosystem\u2013Landscape <strong data-start=\"410\" data-end=\"417\">(D)<\/strong> Population\u2013Landscape\u2013Community\u2013Ecosystem<\/p>\n<p data-start=\"1480\" data-end=\"1585\"><strong data-start=\"1484\" data-end=\"1583\">Q) The entire sequence of communities that successively change in a particular area is called: <\/strong><strong data-start=\"1586\" data-end=\"1593\">(A)<\/strong> Ecological succession <strong data-start=\"1618\" data-end=\"1625\">(B)<\/strong> Sere <strong data-start=\"1633\" data-end=\"1640\">(C)<\/strong> Community dynamics <strong data-start=\"1662\" data-end=\"1669\">(D)<\/strong> Pyramid of biomass<\/p>\n<p data-start=\"971\" data-end=\"1104\"><strong data-start=\"840\" data-end=\"901\">Q) The measurement unit of the ecological footprint is &#8211; <\/strong><strong data-start=\"904\" data-end=\"911\">(A)<\/strong> Global hectares <strong data-start=\"930\" data-end=\"937\">(B)<\/strong> Nanometer <strong data-start=\"950\" data-end=\"957\">(C)<\/strong> Hoppus cubic foot <strong data-start=\"978\" data-end=\"985\">(D)<\/strong> Cubic ton<\/p>\n<p data-start=\"971\" data-end=\"1104\">The minimum area of the land required to completely sustain the life of the person is called his ecological footprint.<\/p>\n<p data-start=\"971\" data-end=\"1104\"><strong data-start=\"399\" data-end=\"511\">Q) Which one of the following is the correct sequence of ecosystems in the order of decreasing productivity? <\/strong><strong data-start=\"514\" data-end=\"521\">(A)<\/strong> Oceans, lakes, grasslands, mangroves <strong data-start=\"559\" data-end=\"566\">(B)<\/strong> Mangroves, oceans, grasslands, lakes <strong data-start=\"606\" data-end=\"613\">(C)<\/strong> Mangroves, grasslands, lakes, oceans <strong data-start=\"651\" data-end=\"658\">(D)<\/strong> Oceans, mangroves, lakes, grasslands<\/p>\n<p data-start=\"971\" data-end=\"1104\"><strong data-start=\"767\" data-end=\"920\">Q) In case of which one of the following biogeochemical cycles, the weathering of rocks is the main source of release of nutrient to enter the cycle? <\/strong><strong data-start=\"923\" data-end=\"930\">(A)<\/strong> Carbon cycle <strong data-start=\"944\" data-end=\"951\">(B)<\/strong> Nitrogen cycle <strong data-start=\"967\" data-end=\"974\">(C)<\/strong> Phosphorus cycle <strong data-start=\"992\" data-end=\"999\">(D)<\/strong> Sulphur cycle<\/p>\n<p data-start=\"971\" data-end=\"1104\"><strong data-start=\"1360\" data-end=\"1427\">Q) Which of the following is an example of anthropogenic biome? <\/strong><strong data-start=\"1430\" data-end=\"1437\">(A)<\/strong> Fresh water <strong data-start=\"1450\" data-end=\"1457\">(B)<\/strong> Grassland <strong data-start=\"1468\" data-end=\"1475\">(C)<\/strong> Rain forest <strong data-start=\"1488\" data-end=\"1495\">(D)<\/strong> Cropland<\/p>\n<p data-start=\"971\" data-end=\"1104\"><strong data-start=\"702\" data-end=\"772\">Q) The example of &#8220;Lentic Habitat&#8221; in the freshwater community is: <\/strong><strong data-start=\"775\" data-end=\"782\">(A)<\/strong> Ponds and swamps <strong data-start=\"800\" data-end=\"807\">(B)<\/strong> Waterfalls and rivers <strong data-start=\"830\" data-end=\"837\">(C)<\/strong> Ponds and rivers <strong data-start=\"855\" data-end=\"862\">(D)<\/strong> All the above<\/p>\n<p data-start=\"971\" data-end=\"1104\"><strong data-start=\"971\" data-end=\"1041\">Q) An inverted pyramid of biomass can be found in which ecosystem?<\/strong> <strong data-start=\"1042\" data-end=\"1049\">(A)<\/strong> Marine <strong data-start=\"1057\" data-end=\"1064\">(B)<\/strong> Grassland <strong data-start=\"1075\" data-end=\"1082\">(C)<\/strong> Forest <strong data-start=\"1090\" data-end=\"1097\">(D)<\/strong> Tundra<\/p>\n<p data-start=\"379\" data-end=\"616\"><strong data-start=\"182\" data-end=\"246\">Q) The highest trophic level in an ecosystem is obtained by:<\/strong> <strong data-start=\"247\" data-end=\"254\">(A)<\/strong> Herbivores <strong data-start=\"266\" data-end=\"273\">(B)<\/strong> Carnivores <strong data-start=\"285\" data-end=\"292\">(C)<\/strong> Omnivores <strong data-start=\"303\" data-end=\"310\">(D)<\/strong> Decomposers<\/p>\n<p data-start=\"379\" data-end=\"616\"><strong data-start=\"379\" data-end=\"540\">Q) Which one of the following terms describes not only the physical space occupied by an organism but also its functional role in the community of organisms?<\/strong> <strong data-start=\"541\" data-end=\"548\">(A)<\/strong> Ecotone <strong data-start=\"557\" data-end=\"564\">(B)<\/strong> Ecological niche <strong data-start=\"582\" data-end=\"589\">(C)<\/strong> Habitat <strong data-start=\"598\" data-end=\"605\">(D)<\/strong> Home range<\/p>\n<p data-start=\"618\" data-end=\"750\"><strong data-start=\"618\" data-end=\"688\">Q) The actual location or place where an organism lives is called:<\/strong> <strong data-start=\"689\" data-end=\"696\">(A)<\/strong> Habitat <strong data-start=\"705\" data-end=\"712\">(B)<\/strong> Ecosystem <strong data-start=\"723\" data-end=\"730\">(C)<\/strong> Niche <strong data-start=\"737\" data-end=\"744\">(D)<\/strong> Biome<\/p>\n<p data-start=\"73\" data-end=\"288\"><strong data-start=\"413\" data-end=\"495\">Q) Which one of the following is the best description of the term &#8216;ecosystem&#8217;?<\/strong> <strong data-start=\"496\" data-end=\"503\">(A)<\/strong> A community of organisms interacting with one another. <strong data-start=\"559\" data-end=\"566\">(B)<\/strong> That part of the Earth which is inhabited by living organisms. <strong data-start=\"630\" data-end=\"637\">(C)<\/strong> A community of organisms together with the environment in which they live. <strong data-start=\"713\" data-end=\"720\">(D)<\/strong> Flora and fauna of a geographical area.<\/p>\n<p data-start=\"73\" data-end=\"288\">\u21d2 The four main components of ecosystem : abiotic substances, producers, consumers, and decomposers.<\/p>\n<p data-start=\"73\" data-end=\"288\"><strong data-start=\"259\" data-end=\"302\">Q) The term Ecosystem was proposed by &#8211; <\/strong><strong data-start=\"305\" data-end=\"312\">(A)<\/strong> G. Tailor <strong data-start=\"323\" data-end=\"330\">(B)<\/strong> E. Hartigan <strong data-start=\"343\" data-end=\"350\">(C)<\/strong> D.R. Stoddart <strong data-start=\"365\" data-end=\"372\">(D)<\/strong> Tansley<\/p>\n<p data-start=\"73\" data-end=\"288\">The investigator of Natural Farming was Masanobu Fukuoka<\/p>\n<p data-start=\"73\" data-end=\"288\"><strong data-start=\"483\" data-end=\"538\">Q) Many transplanted seedlings do not grow because:<\/strong><br data-start=\"538\" data-end=\"541\" \/><strong data-start=\"541\" data-end=\"548\">(A)<\/strong> The new soil does not contain favourable minerals <strong data-start=\"599\" data-end=\"606\">(B)<\/strong> Most of the root hairs grip the new soil too hard <strong data-start=\"657\" data-end=\"664\">(C)<\/strong> Most of the root hairs are lost during transplantation <strong data-start=\"720\" data-end=\"727\">(D)<\/strong> Leaves get damaged during transplantation<\/p>\n<p data-start=\"73\" data-end=\"288\">\u21d2 Agenda 21 \u0915\u094b 1992 \u092e\u0947\u0902 \u0938\u0902\u092f\u0941\u0915\u094d\u0924 \u0930\u093e\u0937\u094d\u091f\u094d\u0930 \u0915\u0947 \u092a\u0930\u094d\u092f\u093e\u0935\u0930\u0923 \u0914\u0930 \u0935\u093f\u0915\u093e\u0938 \u0938\u092e\u094d\u092e\u0947\u0932\u0928 (UNCED), \u091c\u093f\u0938\u0947 \u0930\u093f\u092f\u094b \u0938\u092e\u093f\u091f \u092f\u093e \u0905\u0930\u094d\u0925 \u0938\u092e\u093f\u091f \u092d\u0940 \u0915\u0939\u093e \u091c\u093e\u0924\u093e \u0939\u0948, \u092e\u0947\u0902 \u0905\u092a\u0928\u093e\u092f\u093e \u0917\u092f\u093e \u0925\u093e\u0964<\/p>\n<p data-start=\"73\" data-end=\"288\"><strong data-start=\"616\" data-end=\"806\">Q) A converging lens has a focal length of 10 cm. If a virtual image is formed 20 cms away from the optical centre, how far away is the object placed from the optical centre of the lens?<\/strong> <strong data-start=\"807\" data-end=\"814\">(A)<\/strong> 5.0 cms <strong data-start=\"823\" data-end=\"830\">(B)<\/strong> 6.7 cms <strong data-start=\"839\" data-end=\"846\">(C)<\/strong> 10 cms <strong data-start=\"854\" data-end=\"861\">(D)<\/strong> 20 cms <strong data-start=\"869\" data-end=\"876\">(E)<\/strong> 30 cms<\/p>\n<p data-start=\"73\" data-end=\"288\"><strong data-start=\"186\" data-end=\"246\">Q) For a good solar cell, the Fill Factor (FF) should be<\/strong> <strong data-start=\"247\" data-end=\"254\">(A)<\/strong> FF = 1 <strong data-start=\"262\" data-end=\"269\">(B)<\/strong> FF = 0.1 <strong data-start=\"279\" data-end=\"286\">(C)<\/strong> FF = 0.8 <strong data-start=\"296\" data-end=\"303\">(D)<\/strong> FF = 10 <strong data-start=\"312\" data-end=\"319\">(E)<\/strong> FF = 100<\/p>\n<p data-start=\"73\" data-end=\"288\"><strong data-start=\"73\" data-end=\"245\">Q) On a glass plate a light wave is incident at an angle 60\u00b0. If the reflected and the refracted waves are mutually perpendicular, the refractive index of material is :<\/strong> <strong data-start=\"246\" data-end=\"253\">(A)<\/strong> 1.3 <strong data-start=\"258\" data-end=\"265\">(B)<\/strong> 1 <strong data-start=\"268\" data-end=\"275\">(C)<\/strong> 2 <strong data-start=\"278\" data-end=\"285\">(D)<\/strong> \u221a3<\/p>\n<p data-start=\"523\" data-end=\"652\"><strong data-start=\"523\" data-end=\"596\">Q) Critical angle of light passing from glass to air is minimum for :<\/strong> <strong data-start=\"597\" data-end=\"604\">(A)<\/strong> Red <strong data-start=\"609\" data-end=\"616\">(B)<\/strong> Green <strong data-start=\"623\" data-end=\"630\">(C)<\/strong> Yellow <strong data-start=\"638\" data-end=\"645\">(D)<\/strong> Violet<\/p>\n<p data-start=\"58\" data-end=\"160\"><strong data-start=\"836\" data-end=\"999\">Q) What is the relation between horizontal intensity and vertical intensity of earth&#8217;s magnetic field at the point of earth at which angle of dip is 45 degree?<\/strong> <strong data-start=\"1000\" data-end=\"1007\">(A)<\/strong> Vertical intensity is greater <strong data-start=\"1038\" data-end=\"1045\">(B)<\/strong> Horizontal intensity is greater <strong data-start=\"1078\" data-end=\"1085\">(C)<\/strong> Vertical intensity is less <strong data-start=\"1113\" data-end=\"1120\">(D)<\/strong> Both intensities are equal<\/p>\n<p data-start=\"58\" data-end=\"160\"><strong data-start=\"60\" data-end=\"152\">Q) An object placed in a rare medium is viewed from denser medium where it will appears?<\/strong> <strong data-start=\"153\" data-end=\"160\">(A)<\/strong> At real distance <strong data-start=\"178\" data-end=\"185\">(B)<\/strong> Nearer than its real distance <strong data-start=\"216\" data-end=\"223\">(C)<\/strong> Far away than its real distance <strong data-start=\"256\" data-end=\"263\">(D)<\/strong> Will not be observed<\/p>\n<p data-start=\"58\" data-end=\"160\"><strong data-start=\"53\" data-end=\"121\">Q) One gets magnified image of an object whenever light suffers-<\/strong> <strong data-start=\"122\" data-end=\"129\">(A)<\/strong> Refraction through water. <strong data-start=\"156\" data-end=\"163\">(B)<\/strong> Refraction through glass surface. <strong data-start=\"198\" data-end=\"205\" data-is-only-node=\"\">(C)<\/strong> Refraction through any curved surface. <strong data-start=\"245\" data-end=\"252\">(D)<\/strong> Refraction through a specially designed curved surface.<\/p>\n<ul>\n<li data-start=\"58\" data-end=\"160\"><strong>Magnetic Susceptibility<\/strong> : Ferromagnetic &gt; Paramagnetic &gt; Diamagnetic &gt; Non-magnetic<\/li>\n<\/ul>\n<p data-start=\"58\" data-end=\"160\"><strong data-start=\"58\" data-end=\"117\">Q) There are how many pairs of cranial nerves in human?<\/strong> <strong data-start=\"118\" data-end=\"125\">(A)<\/strong> 8 <strong data-start=\"128\" data-end=\"135\">(B)<\/strong> 12 <strong data-start=\"139\" data-end=\"146\">(C)<\/strong> 25 <strong data-start=\"150\" data-end=\"157\">(D)<\/strong> 31<\/p>\n<p data-start=\"60\" data-end=\"233\"><strong data-start=\"204\" data-end=\"232\">Q) When does heart rest?<\/strong> <strong data-start=\"233\" data-end=\"240\">(A)<\/strong> Never <strong data-start=\"247\" data-end=\"254\">(B)<\/strong> While sleeping <strong data-start=\"270\" data-end=\"277\">(C)<\/strong> Between two beats <strong data-start=\"296\" data-end=\"303\">(D)<\/strong> While doing yoga<\/p>\n<p data-start=\"60\" data-end=\"233\"><strong data-start=\"60\" data-end=\"170\">Q) Which of the following foods will provide the nutrient for the growth of new tissues in the human body?<\/strong> <strong data-start=\"171\" data-end=\"178\">(A)<\/strong> Fruit <strong data-start=\"185\" data-end=\"192\">(B)<\/strong> Vegetables <strong data-start=\"204\" data-end=\"211\">(C)<\/strong> Cheese <strong data-start=\"219\" data-end=\"226\">(D)<\/strong> Sweets<\/p>\n<p data-start=\"235\" data-end=\"299\"><strong data-start=\"235\" data-end=\"297\">Q) Consider the following statements about probiotic food:<\/strong><\/p>\n<ol>\n<li data-start=\"303\" data-end=\"389\">The probiotic food contains live bacteria which are considered beneficial to humans.<\/li>\n<li data-start=\"390\" data-end=\"560\">\n<p data-start=\"393\" data-end=\"560\">Probiotic food helps in maintaining gut flora.<br data-start=\"439\" data-end=\"442\" \/><strong data-start=\"322\" data-end=\"369\">correct option?<\/strong> <strong data-start=\"486\" data-end=\"493\">(A)<\/strong> Only 1 <strong data-start=\"501\" data-end=\"508\">(B)<\/strong> Only 2 <strong data-start=\"516\" data-end=\"523\">(C)<\/strong> Both 1 and 2 <strong data-start=\"537\" data-end=\"544\">(D)<\/strong> Neither 1 nor 2<\/p>\n<\/li>\n<\/ol>\n<p data-start=\"58\" data-end=\"141\"><strong data-start=\"58\" data-end=\"139\">Q) With reference to normal human beings, consider the following statements :<\/strong><\/p>\n<ol>\n<li data-start=\"145\" data-end=\"222\">In response to the presence of HCl, secretin is produced from the duodenum.<\/li>\n<li data-start=\"142\" data-end=\"222\">\n<p data-start=\"145\" data-end=\"222\">Enterogastrone is produced in the small intestine in response to the presence of fatty acids.<br data-start=\"319\" data-end=\"322\" \/><strong data-start=\"322\" data-end=\"369\">correct option?<\/strong> <strong data-start=\"370\" data-end=\"377\">(A)<\/strong> Only 1 <strong data-start=\"385\" data-end=\"392\">(B)<\/strong> Only 2 <strong data-start=\"400\" data-end=\"407\">(C)<\/strong> Both 1 and 2 <strong data-start=\"421\" data-end=\"428\">(D)<\/strong> Neither 1 nor 2<\/p>\n<\/li>\n<\/ol>\n<p data-start=\"60\" data-end=\"228\"><strong data-start=\"58\" data-end=\"79\">Q) Antacids are &#8211;<\/strong> <strong data-start=\"80\" data-end=\"87\">(A)<\/strong> Base <strong data-start=\"93\" data-end=\"100\">(B)<\/strong> Acid <strong data-start=\"106\" data-end=\"113\">(C)<\/strong> Salt <strong data-start=\"119\" data-end=\"126\">(D)<\/strong> Buffer<\/p>\n<p data-start=\"60\" data-end=\"228\"><strong data-start=\"225\" data-end=\"307\">Q) The gas used in discharge tubes for optical decoration and advertising is &#8211;<\/strong> <strong data-start=\"308\" data-end=\"315\">(A)<\/strong> Carbon dioxide <strong data-start=\"331\" data-end=\"338\">(B)<\/strong> Ammonia <strong data-start=\"347\" data-end=\"354\">(C)<\/strong> Sulphur dioxide <strong data-start=\"371\" data-end=\"378\">(D)<\/strong> Neon<\/p>\n<p data-start=\"60\" data-end=\"228\"><strong>Noble Gases (Group 18)<\/strong> &#8211; Hi Neena, Are Krishan&#8217;s X-rays Really Okay?<br \/>\nHe \u2013 Helium, Ne \u2013 Neon, Ar \u2013 Argon, Kr \u2013 Krypton, Xe \u2013 Xenon, Rn \u2013 Radon, Og \u2013 Oganesson (artificial)<\/p>\n<p data-start=\"1399\" data-end=\"1445\"><strong data-start=\"1101\" data-end=\"1173\">Q) Which Noble Gases is not present in the air?<\/strong> <strong data-start=\"1174\" data-end=\"1181\">(A)<\/strong> Helium <strong data-start=\"1189\" data-end=\"1196\">(B)<\/strong> Argon <strong data-start=\"1203\" data-end=\"1210\">(C)<\/strong> <strong>Radon<\/strong> <strong data-start=\"1217\" data-end=\"1224\">(D)<\/strong> Neon<\/p>\n<p data-start=\"1399\" data-end=\"1445\"><strong data-start=\"126\" data-end=\"171\">Q) The noble gas used in radiotherapy is:<\/strong> <strong data-start=\"172\" data-end=\"179\">(A)<\/strong> Neon <strong data-start=\"185\" data-end=\"192\">(B)<\/strong> Argon <strong data-start=\"199\" data-end=\"206\">(C)<\/strong> Radon <strong data-start=\"213\" data-end=\"220\" data-is-only-node=\"\">(D)<\/strong> Xenon<\/p>\n<p data-start=\"60\" data-end=\"228\"><strong data-start=\"64\" data-end=\"151\">Q) Which one of the following catalysts is used in hydrogenation of vegetable oils?<\/strong> <strong data-start=\"152\" data-end=\"159\">(A)<\/strong> Zinc <strong data-start=\"165\" data-end=\"172\">(B)<\/strong> Platinum <strong data-start=\"182\" data-end=\"189\">(C)<\/strong> Nickel <strong data-start=\"197\" data-end=\"204\">(D)<\/strong> Iron<\/p>\n<p data-start=\"60\" data-end=\"228\"><strong data-start=\"60\" data-end=\"179\">Q) An element X has four electrons in its outermost orbit. What will be the formula of its compounds with Hydrogen?<\/strong> <strong data-start=\"180\" data-end=\"187\">(A)<\/strong> X4H <strong data-start=\"192\" data-end=\"199\">(B)<\/strong> X4H4 <strong data-start=\"205\" data-end=\"212\">(C)<\/strong> XH3 <strong data-start=\"217\" data-end=\"224\">(D)<\/strong> XH4<\/p>\n<p data-start=\"230\" data-end=\"364\"><strong data-start=\"230\" data-end=\"305\">Q) According to weight, the percentage of Hydrogen in water (H\u2082O), is &#8211;<\/strong> <strong data-start=\"306\" data-end=\"313\">(A)<\/strong> 44.45% <strong data-start=\"321\" data-end=\"328\">(B)<\/strong> 5.55% <strong data-start=\"335\" data-end=\"342\">(C)<\/strong> 88.89% <strong data-start=\"350\" data-end=\"357\">(D)<\/strong> 11.11%<\/p>\n<p data-start=\"53\" data-end=\"163\"><strong data-start=\"60\" data-end=\"98\">Q) An example of physical change &#8211;<\/strong> <strong data-start=\"99\" data-end=\"106\">(A)<\/strong> Blackening of silverware <strong data-start=\"132\" data-end=\"139\">(B)<\/strong> Burning of Candle <strong data-start=\"158\" data-end=\"165\">(C)<\/strong> Making of curd from milk <strong data-start=\"191\" data-end=\"198\">(D)<\/strong> Dissolving of sugar in water<\/p>\n<p data-start=\"53\" data-end=\"163\"><strong data-start=\"53\" data-end=\"93\">Q) Radioactivity was discovered by :<\/strong> <strong data-start=\"94\" data-end=\"101\">(A)<\/strong> Rutherford <strong data-start=\"113\" data-end=\"120\">(B)<\/strong> Becquerel <strong data-start=\"131\" data-end=\"138\">(C)<\/strong> Bohr <strong data-start=\"144\" data-end=\"151\" data-is-only-node=\"\">(D)<\/strong> Madam Curie<\/p>\n<p data-start=\"52\" data-end=\"505\"><strong data-start=\"60\" data-end=\"134\">Q) The positively charged part at the centre of an atom is called as :<\/strong> <strong data-start=\"135\" data-end=\"142\">(A)<\/strong> Proton <strong data-start=\"150\" data-end=\"157\">(B)<\/strong> Neutron <strong data-start=\"166\" data-end=\"173\">(C)<\/strong> Electron <strong data-start=\"183\" data-end=\"190\">(D)<\/strong> <strong>Nucleus<\/strong><\/p>\n<p data-start=\"52\" data-end=\"505\"><strong data-start=\"78\" data-end=\"211\">Q) In an ecosystem, flow of energy declines as it passes from lower to higher trophic level. This is explained by the following :<\/strong> <strong data-start=\"212\" data-end=\"219\">(A)<\/strong> First law of thermodynamics <strong data-start=\"248\" data-end=\"255\">(B)<\/strong> <strong>Second law of thermodynamics<\/strong> <strong data-start=\"285\" data-end=\"292\">(C)<\/strong> Newton&#8217;s second law <strong data-start=\"313\" data-end=\"320\">(D)<\/strong> Newton&#8217;s third law<\/p>\n<p data-start=\"52\" data-end=\"505\"><strong data-start=\"341\" data-end=\"443\">Q) The temperature point at which solid, liquid and gaseous states may stay together is known as :<\/strong> <strong data-start=\"444\" data-end=\"451\">(A)<\/strong> boiling point <strong data-start=\"466\" data-end=\"473\">(B)<\/strong> melting point <strong data-start=\"488\" data-end=\"495\">(C)<\/strong> freezing point <strong data-start=\"511\" data-end=\"518\">(D)<\/strong> triple point<\/p>\n<p data-start=\"52\" data-end=\"505\"><strong data-start=\"52\" data-end=\"86\">Q) What is the critical angle?<\/strong> <strong data-start=\"87\" data-end=\"94\">(A)<\/strong> angle of refraction of 180 degrees. <strong data-start=\"193\" data-end=\"200\">(B)<\/strong> angle of incidence that produces an angle of refraction of 90 degrees. <strong data-start=\"298\" data-end=\"305\">(C)<\/strong> light passes through a medium without any refraction. <strong data-start=\"401\" data-end=\"408\">(D)<\/strong> produces an angle of incidence of 90 degrees.<\/p>\n<ul>\n<li data-start=\"52\" data-end=\"505\">Intensity of light &#8211; Amplitude of light<\/li>\n<li data-start=\"52\" data-end=\"505\">Colour of light &#8211; Frequency of light<\/li>\n<li data-start=\"52\" data-end=\"505\">Velocity of light &#8211; Refractive index of the medium<\/li>\n<li data-start=\"52\" data-end=\"505\">Propagation of light &#8211; Properties of the medium<\/li>\n<li data-start=\"52\" data-end=\"505\">Diffraction of light &#8211; Path difference<\/li>\n<\/ul>\n<p data-start=\"507\" data-end=\"748\"><strong data-start=\"507\" data-end=\"606\">Q) If a unit positive charge is taken from one point to another on the potential surface, then-<\/strong> <strong data-start=\"607\" data-end=\"614\">(A)<\/strong> Work will be done on charge <strong data-start=\"643\" data-end=\"650\">(B)<\/strong> Work will be done by charge <strong data-start=\"679\" data-end=\"686\">(C)<\/strong> Work done will be zero <strong data-start=\"710\" data-end=\"717\">(D)<\/strong> The work done will be constant<\/p>\n<p data-start=\"1399\" data-end=\"1445\"><strong data-start=\"1212\" data-end=\"1292\">Q) Which of the following compounds is used in soda-acid fire extinguishers? <\/strong><strong data-start=\"1295\" data-end=\"1302\">(A)<\/strong> Bleaching powder <strong data-start=\"1320\" data-end=\"1327\">(B)<\/strong> Calcium chloride <strong data-start=\"1345\" data-end=\"1352\">(C)<\/strong> Sodium bicarbonate <strong data-start=\"1372\" data-end=\"1379\">(D)<\/strong> Sodium carbonate<\/p>\n<p data-start=\"1399\" data-end=\"1445\"><strong data-start=\"1150\" data-end=\"1238\">Q) Which of the following substances can move across the cell membrane by diffusion?<\/strong> <strong data-start=\"1239\" data-end=\"1246\">(A)<\/strong> Oxygen <strong data-start=\"1254\" data-end=\"1261\">(B)<\/strong> Nucleic acid <strong data-start=\"1275\" data-end=\"1282\">(C)<\/strong> Proteins <strong data-start=\"1292\" data-end=\"1299\">(D)<\/strong> Starch<\/p>\n<p data-start=\"1399\" data-end=\"1445\"><strong data-start=\"78\" data-end=\"182\">Q) When white light is incident on a glass prism, it undergoes dispersion. This phenomenon is due to<\/strong> <strong data-start=\"183\" data-end=\"190\">(A)<\/strong> <strong>refractive index of the glass being different for different colours<\/strong> <strong data-start=\"259\" data-end=\"266\">(B)<\/strong> interference of the light <strong data-start=\"293\" data-end=\"300\">(C)<\/strong> diffraction of the light <strong data-start=\"326\" data-end=\"333\">(D)<\/strong> refractive index of the glass being the same for different colours<\/p>\n<p data-start=\"1399\" data-end=\"1445\"><strong data-start=\"383\" data-end=\"434\">Q) The magnetic susceptibility is negative for\u2013<\/strong> <strong data-start=\"435\" data-end=\"442\">(A)<\/strong> Paramagnetic substance only <strong data-start=\"471\" data-end=\"478\">(B)<\/strong> <strong>Diamagnetic materials only<\/strong> <strong data-start=\"506\" data-end=\"513\">(C)<\/strong> Ferromagnetic materials only <strong data-start=\"543\" data-end=\"550\">(D)<\/strong> Paramagnetic and ferromagnetic materials both<\/p>\n<p data-start=\"1399\" data-end=\"1445\"><strong data-start=\"52\" data-end=\"196\">Q) In case of formation of multiple images by way of multiple reflection and refraction in a thick glass slab, which image is the brightest? <\/strong><strong data-start=\"199\" data-end=\"206\">(A)<\/strong> First <strong data-start=\"215\" data-end=\"222\">(B)<\/strong> Third <strong data-start=\"231\" data-end=\"238\">(C)<\/strong> Fourth <strong data-start=\"248\" data-end=\"255\">(D) Second<\/strong><\/p>\n<p data-start=\"1399\" data-end=\"1445\"><strong data-start=\"58\" data-end=\"136\">Q) The ______ regulates and controls the amount of light entering the eye.<\/strong> <strong data-start=\"137\" data-end=\"144\">(A)<\/strong> <strong>pupil (B)<\/strong> retina <strong data-start=\"166\" data-end=\"173\">(C)<\/strong> cornea <strong data-start=\"181\" data-end=\"188\" data-is-only-node=\"\">(D)<\/strong> iris<\/p>\n<p data-start=\"1399\" data-end=\"1445\"><strong data-start=\"190\" data-end=\"240\">Q) In a simple microscope, the final image is:<\/strong> <strong data-start=\"241\" data-end=\"248\">(A)<\/strong> Virtual, erect and magnified <strong data-start=\"278\" data-end=\"285\">(B)<\/strong> Real, erect and magnified <strong data-start=\"312\" data-end=\"319\">(C)<\/strong> Real, inverted and magnified <strong data-start=\"349\" data-end=\"356\" data-is-only-node=\"\">(D)<\/strong> Virtual, inverted and magnified<\/p>\n<p data-start=\"1399\" data-end=\"1445\"><strong data-start=\"1273\" data-end=\"1348\">Q) In the year 1997, the World Environment Conference was organised in?<\/strong> <strong data-start=\"1349\" data-end=\"1356\">(A)<\/strong> Reo-de-Janeiro <strong data-start=\"1372\" data-end=\"1379\">(B)<\/strong> Nairobi <strong data-start=\"1388\" data-end=\"1395\">(C)<\/strong> Kyoto <strong data-start=\"1402\" data-end=\"1409\">(D)<\/strong> New York<\/p>\n<p data-start=\"1399\" data-end=\"1445\">\u21d2 World Meteorological Organization (WMO) &#8211; Geneva, Switzerland.<br \/>\n\u21d2 United Nations Environment Programme (UNEP, 1972) &#8211; Nairobi, Kenya<\/p>\n<p data-start=\"1399\" data-end=\"1445\"><strong data-start=\"548\" data-end=\"611\">Q) What is the thin layer of gases around the earth called?<\/strong> <strong data-start=\"612\" data-end=\"619\">(A)<\/strong> Biosphere <strong data-start=\"630\" data-end=\"637\">(B)<\/strong> Water particle <strong data-start=\"653\" data-end=\"660\">(C)<\/strong> <strong>Atmosphere<\/strong> <strong data-start=\"672\" data-end=\"679\">(D)<\/strong> Hydrosphere<\/p>\n<p data-start=\"1399\" data-end=\"1445\">\u21d2 The theme for World Environment Day 2025 is &#8220;Land Restoration, Desertification, and Drought Resilience&#8221;.<br \/>\n\u21d2 The &#8216;Common Carbon Metric&#8217; supported by UNEP, has been developed for (A) assessing the carbon footprint of building operations around the world.<\/p>\n<p data-start=\"1399\" data-end=\"1445\"><strong data-start=\"466\" data-end=\"542\">Q) National Environmental Engineering Research Institute is situated at:<\/strong> <strong data-start=\"543\" data-end=\"550\">(A)<\/strong> Bangaluru <strong data-start=\"561\" data-end=\"568\">(B)<\/strong> Hyderabad <strong data-start=\"579\" data-end=\"586\">(C)<\/strong> Nagpur <strong data-start=\"594\" data-end=\"601\">(D)<\/strong> New Delhi<\/p>\n<p data-start=\"1399\" data-end=\"1445\"><strong>List of Environment Reposrts<\/strong><\/p>\n<ul>\n<li data-start=\"1399\" data-end=\"1445\"><strong data-start=\"1399\" data-end=\"1436\">The Limits to Growth Report<\/strong> &#8211; 1972<\/li>\n<li data-start=\"1399\" data-end=\"1445\"><strong>Environment (Protection) Act<\/strong> &#8211; 1986<\/li>\n<li><strong data-start=\"1448\" data-end=\"1484\">Brundtland Commission Report (<\/strong>Our Common Future<strong data-start=\"1448\" data-end=\"1484\">)<\/strong> &#8211; 1987<\/li>\n<li><strong data-start=\"1496\" data-end=\"1522\">Montreal Protocol<\/strong> &#8211; 1989<\/li>\n<li data-start=\"1397\" data-end=\"1445\"><strong data-start=\"1534\" data-end=\"1557\">Rio Earth Summit<\/strong> &#8211; 1992<\/li>\n<\/ul>\n<p data-start=\"378\" data-end=\"681\"><strong data-start=\"378\" data-end=\"481\">Q) While lifting a bucket of water from a well, what do we feel when the bucket comes out of water?<\/strong> <strong data-start=\"482\" data-end=\"489\">(A)<\/strong> Becomes heavier above the surface of water <strong data-start=\"533\" data-end=\"540\">(B)<\/strong> Becomes lighter above the surface of water <strong data-start=\"584\" data-end=\"591\">(C)<\/strong> Loses stability on coming out of the water <strong data-start=\"635\" data-end=\"642\">(D)<\/strong> Has gained mass on coming out of water<\/p>\n<p data-start=\"1591\" data-end=\"1789\"><strong data-start=\"1591\" data-end=\"1665\">Q) A body floats at 4\u00b0C water. If the temperature reaches 100\u00b0C, then:<\/strong> <strong data-start=\"1666\" data-end=\"1673\">(A)<\/strong> The body will sink <strong data-start=\"1693\" data-end=\"1700\">(B)<\/strong> No change <strong data-start=\"1711\" data-end=\"1718\">(C)<\/strong> More part of the body will submerge <strong data-start=\"1755\" data-end=\"1762\">(D)<\/strong> The body will float freely<\/p>\n<p data-start=\"2110\" data-end=\"2303\"><strong data-start=\"2110\" data-end=\"2169\">Q) When a ship enters a sea from a river, what happens?<\/strong> <strong data-start=\"2170\" data-end=\"2177\">(A)<\/strong> It rises a little <strong data-start=\"2196\" data-end=\"2203\">(B)<\/strong> It remains at the same level <strong data-start=\"2233\" data-end=\"2240\">(C)<\/strong> It sinks a little <strong data-start=\"2259\" data-end=\"2266\">(D)<\/strong> It immersed in the bottom of the sea<\/p>\n<p data-start=\"1979\" data-end=\"2108\"><strong data-start=\"1979\" data-end=\"2048\">Q) A body-weight is highest in which among the following mediums?<\/strong> <strong data-start=\"2049\" data-end=\"2056\">(A)<\/strong> Air <strong data-start=\"2061\" data-end=\"2068\">(B)<\/strong> Water <strong data-start=\"2075\" data-end=\"2082\">(C)<\/strong> Hydrogen <strong data-start=\"2092\" data-end=\"2099\">(D)<\/strong> Nitrogen<\/p>\n<p data-start=\"227\" data-end=\"376\"><strong data-start=\"227\" data-end=\"324\">Q) When pure water turns into ice at 4\u00b0C, what is the ratio of ice density compared to water?<\/strong> <strong data-start=\"325\" data-end=\"332\">(A)<\/strong> 10\/10 <strong data-start=\"339\" data-end=\"346\">(B)<\/strong> 1\/2 <strong data-start=\"351\" data-end=\"358\">(C)<\/strong> 9\/10 <strong data-start=\"364\" data-end=\"371\">(D)<\/strong> 1\/10<\/p>\n<p data-start=\"870\" data-end=\"1107\"><strong data-start=\"870\" data-end=\"1018\">Q) What is the law in which under the same conditions of temperature and pressure, equal volumes of all gases contain equal number of molecules?<\/strong> <strong data-start=\"1019\" data-end=\"1026\">(A)<\/strong> Coriolis effect <strong data-start=\"1043\" data-end=\"1050\">(B)<\/strong> Graham&#8217;s law <strong data-start=\"1064\" data-end=\"1071\">(C)<\/strong> Pascal&#8217;s law <strong data-start=\"1085\" data-end=\"1092\">(D)<\/strong> Avogadro&#8217;s law<\/p>\n<p data-start=\"750\" data-end=\"868\"><strong data-start=\"750\" data-end=\"792\">Q) The maximum density of water is at:<\/strong> <strong data-start=\"793\" data-end=\"800\">(A)<\/strong> 373 Kelvin <strong data-start=\"812\" data-end=\"819\">(B)<\/strong> 277 Kelvin <strong data-start=\"831\" data-end=\"838\">(C)<\/strong> 273 Kelvin <strong data-start=\"850\" data-end=\"857\">(D)<\/strong> 269 Kelvin<\/p>\n<p data-start=\"1394\" data-end=\"1518\"><strong data-start=\"1394\" data-end=\"1459\">Q) Increasing the amount of a substance does not change its &#8211;<\/strong> <strong data-start=\"1460\" data-end=\"1467\">(A)<\/strong> Volume <strong data-start=\"1475\" data-end=\"1482\">(B)<\/strong> Weight <strong data-start=\"1490\" data-end=\"1497\">(C)<\/strong> Mass <strong data-start=\"1503\" data-end=\"1510\">(D)<\/strong> Density<\/p>\n<p data-start=\"483\" data-end=\"794\"><strong data-start=\"483\" data-end=\"589\">Q) The surface of a lake is frozen in severe winter, but the water at its bottom is still liquid. Why?<\/strong> <strong data-start=\"590\" data-end=\"597\">(A)<\/strong> Ice is a bad conductor of heat <strong data-start=\"629\" data-end=\"636\">(B)<\/strong> Since the surface of the lake is at the same temperature as the air, no heat is lost <strong data-start=\"722\" data-end=\"729\">(C)<\/strong> The density of water is maximum at 4\u00b0\u2103 <strong data-start=\"769\" data-end=\"776\">(D)<\/strong> None of the above<\/p>\n<p data-start=\"1355\" data-end=\"1533\"><strong data-start=\"1355\" data-end=\"1433\">Q) A sudden fall in barometer reading indicates that the weather will be :<\/strong> <strong data-start=\"1434\" data-end=\"1441\">(A)<\/strong> Stormy weather <strong data-start=\"1457\" data-end=\"1464\">(B)<\/strong> Rainy weather <strong data-start=\"1479\" data-end=\"1486\">(C)<\/strong> Cool dry weather <strong data-start=\"1504\" data-end=\"1511\">(D)<\/strong> Hot and humid weather<\/p>\n<p data-start=\"321\" data-end=\"464\"><strong data-start=\"321\" data-end=\"379\">Q) Kerosene rises in the wick of the stove is due to &#8211;<\/strong> <strong data-start=\"380\" data-end=\"387\">(A)<\/strong> Osmosis <strong data-start=\"396\" data-end=\"403\">(B)<\/strong> Diffusion <strong data-start=\"414\" data-end=\"421\">(C)<\/strong> Surface tension <strong data-start=\"438\" data-end=\"445\">(D)<\/strong> Biogen contraction<\/p>\n<p data-start=\"466\" data-end=\"773\"><strong data-start=\"466\" data-end=\"548\">Q) In a capillary tube a fluid rises more as compared to water, it is due to :<\/strong> <strong data-start=\"549\" data-end=\"556\">(A)<\/strong> Fluid is more viscous than that of water <strong data-start=\"598\" data-end=\"605\">(B)<\/strong> Temperature of fluid is more than that of water <strong data-start=\"654\" data-end=\"661\">(C)<\/strong> Surface tension of fluid is less than that of water <strong data-start=\"714\" data-end=\"721\">(D)<\/strong> Surface tension of fluid is more than that of water<\/p>\n<p data-start=\"665\" data-end=\"948\"><strong data-start=\"665\" data-end=\"820\">Q) A hydrogen-inflated polythene balloon is released from the surface of the Earth. As the balloon rises to an altitude up in the atmosphere, it will &#8211;<\/strong> <strong data-start=\"821\" data-end=\"828\">(A)<\/strong> Decrease in size <strong data-start=\"846\" data-end=\"853\">(B)<\/strong> Flatten into disc-like shape <strong data-start=\"883\" data-end=\"890\">(C)<\/strong> Increase in size <strong data-start=\"908\" data-end=\"915\">(D)<\/strong> Maintain the same size and shape<\/p>\n<p data-start=\"267\" data-end=\"663\"><strong data-start=\"267\" data-end=\"370\">Q) If two bubbles of soap of different diameter come in contact with a tube, then what will happen?<\/strong> <strong data-start=\"371\" data-end=\"378\">(A)<\/strong> The size of both the bubbles will remain same <strong data-start=\"425\" data-end=\"432\">(B)<\/strong> The smaller bubble will become smaller and bigger will become bigger <strong data-start=\"502\" data-end=\"509\">(C)<\/strong> The smaller bubble will become larger and larger will become smaller to get the same size <strong data-start=\"600\" data-end=\"607\">(D)<\/strong> Both bubbles will burst as soon as they come in contact<\/p>\n<p data-start=\"71\" data-end=\"265\"><strong data-start=\"71\" data-end=\"112\">Q) Pressure inside a soap bubble is &#8211;<\/strong> <strong data-start=\"113\" data-end=\"120\">(A)<\/strong> More than atmospheric pressure <strong data-start=\"152\" data-end=\"159\">(B)<\/strong> Less than atmospheric pressure <strong data-start=\"191\" data-end=\"198\">(C)<\/strong> Equal to atmospheric pressure <strong data-start=\"229\" data-end=\"236\">(D)<\/strong> Half of atmospheric pressure<\/p>\n<p data-start=\"1304\" data-end=\"1519\"><strong data-start=\"1304\" data-end=\"1349\">Q) Oil spreads on water surface because &#8211;<\/strong> <strong data-start=\"1350\" data-end=\"1357\">(A)<\/strong> Oil is denser than water <strong data-start=\"1383\" data-end=\"1390\">(B)<\/strong> Oil is less dense than water <strong data-start=\"1420\" data-end=\"1427\">(C)<\/strong> Surface tension of oil is more than water <strong data-start=\"1470\" data-end=\"1477\">(D)<\/strong> Surface tension of oil is less than water<\/p>\n<p data-start=\"108\" data-end=\"224\"><strong data-start=\"108\" data-end=\"151\">Q) A pendulum clock can run faster in &#8211;<\/strong> <strong data-start=\"152\" data-end=\"159\">(A)<\/strong> Summer <strong data-start=\"167\" data-end=\"174\">(B)<\/strong> Winter <strong data-start=\"182\" data-end=\"189\">(C)<\/strong> Spring season <strong data-start=\"204\" data-end=\"211\">(D)<\/strong> Rainy season<\/p>\n<p data-start=\"810\" data-end=\"1021\"><strong data-start=\"810\" data-end=\"923\">Q) A girl is swinging on a swing in sitting position. When the girl stands up, the period of the swing will &#8211;<\/strong> <strong data-start=\"924\" data-end=\"931\">(A)<\/strong> Be shorter <strong data-start=\"943\" data-end=\"950\">(B)<\/strong> Be longer <strong data-start=\"961\" data-end=\"968\">(C)<\/strong> Depends on the height of the girl <strong data-start=\"1003\" data-end=\"1010\">(D)<\/strong> Not change<\/p>\n<p data-start=\"367\" data-end=\"575\"><strong data-start=\"374\" data-end=\"412\">Q) The time period of a pendulum &#8211;<\/strong> <strong data-start=\"413\" data-end=\"420\">(A)<\/strong> Depends on the mass <strong data-start=\"441\" data-end=\"448\">(B)<\/strong> Depends on its length <strong data-start=\"471\" data-end=\"478\">(C)<\/strong> Depends on time <strong data-start=\"495\" data-end=\"502\">(D)<\/strong> Depends on temperature<\/p>\n<p data-start=\"367\" data-end=\"575\"><strong data-start=\"80\" data-end=\"193\">Q) The Earth travels in its orbit at a speed of approx 4,400 km per hour. Why do we not feel this high speed?<\/strong> <strong data-start=\"194\" data-end=\"201\">(A)<\/strong> Because we are too small compared to the size of the Earth <strong data-start=\"261\" data-end=\"268\">(B)<\/strong> Our relative speed with respect to the Earth along the Earth&#8217;s orbit is zero <strong data-start=\"346\" data-end=\"353\">(C)<\/strong> The solar system as a whole is also moving <strong data-start=\"397\" data-end=\"404\">(D)<\/strong> The gravity of the Earth constantly pulls us towards the Earth&#8217;s centre<\/p>\n<p data-start=\"367\" data-end=\"575\"><strong data-start=\"1217\" data-end=\"1296\">Q) A satellite is kept moving in its orbit around the Earth. It is due to &#8211;<\/strong> <strong data-start=\"1297\" data-end=\"1304\">(A)<\/strong> Centrifugal force <strong data-start=\"1323\" data-end=\"1330\">(B)<\/strong> Centripetal force <strong data-start=\"1349\" data-end=\"1356\">(C)<\/strong> Gravitational force or lack of it <strong data-start=\"1391\" data-end=\"1398\">(D)<\/strong> Some other forces<\/p>\n<p data-start=\"367\" data-end=\"575\"><strong data-start=\"2224\" data-end=\"2319\">Q) If a person is sitting in a lift, then when will he feel that his weight gets increased?<\/strong> <strong data-start=\"2320\" data-end=\"2327\">(A)<\/strong> When the elevator is going upward expeditiously <strong data-start=\"2376\" data-end=\"2383\">(B)<\/strong> When the elevator is going down expeditiously <strong data-start=\"2430\" data-end=\"2437\">(C)<\/strong> Going upward with constant velocity <strong data-start=\"2474\" data-end=\"2481\">(D)<\/strong> Going downward with constant velocity<\/p>\n<p data-start=\"367\" data-end=\"575\"><strong data-start=\"367\" data-end=\"508\">Q) A ball is dropped from the top of a high building with a constant acceleration of 9.8 m\/s\u00b2. What will be its velocity after 3 seconds?<\/strong> <strong data-start=\"509\" data-end=\"516\">(A)<\/strong> 9.8 m\/s <strong data-start=\"525\" data-end=\"532\">(B)<\/strong> 19.6 m\/s <strong data-start=\"542\" data-end=\"549\">(C)<\/strong> 29.4 m\/s <strong data-start=\"559\" data-end=\"566\">(D)<\/strong> 39.2 m\/s<\/p>\n<p data-start=\"577\" data-end=\"812\"><strong data-start=\"577\" data-end=\"716\">Q) If the radius of the Earth were to shrink by one percent, its mass remaining the same, the value of g on the Earth&#8217;s surface would &#8211;<\/strong> <strong data-start=\"717\" data-end=\"724\">(A)<\/strong> Increase by 0.5% <strong data-start=\"742\" data-end=\"749\">(B)<\/strong> Increase by 2% <strong data-start=\"765\" data-end=\"772\">(C)<\/strong> Decrease by 0.5% <strong data-start=\"790\" data-end=\"797\">(D)<\/strong> Decrease by 2%<\/p>\n<p data-start=\"814\" data-end=\"978\"><strong data-start=\"814\" data-end=\"890\">Q) The acceleration due to gravity of a destructive earthquake will be &#8211;<\/strong> <strong data-start=\"891\" data-end=\"898\">(A)<\/strong> &gt; 550 cm\/sec\u00b2 <strong data-start=\"913\" data-end=\"920\">(B)<\/strong> &gt; 750 cm\/sec\u00b2 <strong data-start=\"935\" data-end=\"942\">(C)<\/strong> &gt; 950 cm\/sec\u00b2 <strong data-start=\"957\" data-end=\"964\">(D)<\/strong> &gt; 980 cm\/sec\u00b2<\/p>\n<p data-start=\"980\" data-end=\"1230\"><strong data-start=\"980\" data-end=\"1169\">Q) The mass of a body on the Earth is 100 kg (acceleration due to gravity, g\u2091 = 10 m\/s\u00b2). If acceleration due to gravity on the Moon is (g\/6), then the mass of the body on the Moon is &#8211;<\/strong> <strong data-start=\"1170\" data-end=\"1177\">(A)<\/strong> 100\/6 kg <strong data-start=\"1187\" data-end=\"1194\">(B)<\/strong> 60 kg <strong data-start=\"1201\" data-end=\"1208\">(C)<\/strong> 100 kg <strong data-start=\"1216\" data-end=\"1223\">(D)<\/strong> 600 kg<\/p>\n<p data-start=\"1232\" data-end=\"1354\"><strong data-start=\"1232\" data-end=\"1258\">Q) Weightlessness is &#8211;<\/strong> <strong data-start=\"1259\" data-end=\"1266\">(A)<\/strong> Zero gravity <strong data-start=\"1280\" data-end=\"1287\">(B)<\/strong> When gravity decreases <strong data-start=\"1311\" data-end=\"1318\">(C)<\/strong> In vacuum <strong data-start=\"1329\" data-end=\"1336\">(D)<\/strong> None of the above<\/p>\n<p data-start=\"52\" data-end=\"234\"><strong data-start=\"879\" data-end=\"981\">Q) If the spinning speed of the Earth increases, then the weight of the body at the equator will &#8211;<\/strong> <strong data-start=\"982\" data-end=\"989\">(A)<\/strong> Increase <strong data-start=\"999\" data-end=\"1006\">(B)<\/strong> Decrease <strong data-start=\"1016\" data-end=\"1023\">(C)<\/strong> Remain same <strong data-start=\"1036\" data-end=\"1043\">(D)<\/strong> Be doubled<\/p>\n<p data-start=\"52\" data-end=\"234\"><strong data-start=\"576\" data-end=\"639\">Q) If an object is falling from above, its weight remains &#8211;<\/strong> <strong data-start=\"640\" data-end=\"647\">(A)<\/strong> Zero <strong data-start=\"653\" data-end=\"660\">(B)<\/strong> Same <strong data-start=\"666\" data-end=\"673\">(C)<\/strong> Change <strong data-start=\"681\" data-end=\"688\">(D)<\/strong> None of the above<\/p>\n<p data-start=\"52\" data-end=\"234\"><strong data-start=\"1354\" data-end=\"1444\">Q) Two objects of different masses falling freely near the surface of the Moon would &#8211;<\/strong> <strong data-start=\"1445\" data-end=\"1452\">(A)<\/strong> Have different accelerations <strong data-start=\"1482\" data-end=\"1489\">(B)<\/strong> Undergo a change in their inertia <strong data-start=\"1524\" data-end=\"1531\">(C)<\/strong> Have same velocity at any instant <strong data-start=\"1566\" data-end=\"1573\">(D)<\/strong> Experience forces of same magnitude<\/p>\n<p data-start=\"52\" data-end=\"234\"><strong data-start=\"52\" data-end=\"154\">Q) Who among the following anticipated Newton by declaring that all things gravitate to the earth?<\/strong> <strong data-start=\"155\" data-end=\"162\">(A)<\/strong> Aryabhatta <strong data-start=\"174\" data-end=\"181\">(B)<\/strong> Varahamihira <strong data-start=\"195\" data-end=\"202\">(C)<\/strong> Buddhagupta <strong data-start=\"215\" data-end=\"222\">(D)<\/strong> Brahmagupta<\/p>\n<p data-start=\"984\" data-end=\"1275\"><strong data-start=\"984\" data-end=\"1130\">Q) If the distance between the Earth and the Sun were twice what it is now, the gravitational force exerted on the Earth by the Sun would be &#8211;<\/strong> <strong data-start=\"1131\" data-end=\"1138\">(A)<\/strong> Twice as large as it is now <strong data-start=\"1167\" data-end=\"1174\">(B)<\/strong> Four times as large as it is now <strong data-start=\"1208\" data-end=\"1215\">(C)<\/strong> One fourth of what it is now <strong data-start=\"1245\" data-end=\"1252\">(D)<\/strong> Half of what it is now<\/p>\n<p data-start=\"1134\" data-end=\"1259\"><strong data-start=\"1026\" data-end=\"1128\">Q) How can the height of a person who is six feet tall, be expressed (approximately) in nanometre?<\/strong> <strong data-start=\"1129\" data-end=\"1136\">(A)<\/strong> 183 \u00d7 10\u2076 nm <strong data-start=\"1150\" data-end=\"1157\">(B)<\/strong> 234 \u00d7 10\u2076 nm <strong data-start=\"1171\" data-end=\"1178\">(C)<\/strong> 183 \u00d7 10\u2077 nm <strong data-start=\"1192\" data-end=\"1199\">(D)<\/strong> 181 \u00d7 10\u2077 nm<\/p>\n<p data-start=\"1134\" data-end=\"1259\"><strong data-start=\"1261\" data-end=\"1324\">Q) Which one of the following statements is not correct ?<\/strong><br \/>\n<strong data-start=\"1325\" data-end=\"1332\">(A)<\/strong> The presence of NaCl increases the rate of setting of Plaster of Paris<br \/>\n<strong data-start=\"1404\" data-end=\"1411\">(B)<\/strong> Gypsum is added to the cement to slow down its rate of setting<br \/>\n<strong data-start=\"1475\" data-end=\"1482\">(C)<\/strong> All alkaline earth metals form hydrated salts<br \/>\n<strong data-start=\"1529\" data-end=\"1536\">(D)<\/strong> Barium and Strontium are found free in nature<\/p>\n<p data-start=\"1134\" data-end=\"1259\"><strong data-start=\"1134\" data-end=\"1166\">Q) Iodised salt contains :<\/strong> <strong data-start=\"1167\" data-end=\"1174\">(A)<\/strong> Free iodine <strong data-start=\"1187\" data-end=\"1194\">(B)<\/strong> Calcium iodide <strong data-start=\"1210\" data-end=\"1217\">(C)<\/strong> Magnesium iodide <strong data-start=\"1235\" data-end=\"1242\">(D)<\/strong> Potassium iodide<\/p>\n<p data-start=\"1012\" data-end=\"1137\"><strong data-start=\"782\" data-end=\"826\">Q) Table salt (NaCl) is a product of &#8211;<\/strong> <strong data-start=\"827\" data-end=\"834\">(A)<\/strong> Weak acid and weak base <strong data-start=\"859\" data-end=\"866\">(B)<\/strong> Strong acid and strong base <strong data-start=\"895\" data-end=\"902\">(C)<\/strong> Weak acid and strong base <strong data-start=\"929\" data-end=\"936\">(D)<\/strong> Strong acid and weak base<\/p>\n<p data-start=\"1012\" data-end=\"1137\"><strong data-start=\"466\" data-end=\"511\">Q) Quartz crystals used in clocks are :<\/strong> <strong data-start=\"512\" data-end=\"519\">(A)<\/strong> Sodium silicate <strong data-start=\"536\" data-end=\"543\">(B)<\/strong> Silicon dioxide <strong data-start=\"560\" data-end=\"567\">(C)<\/strong> Germanium oxide <strong data-start=\"584\" data-end=\"591\">(D)<\/strong> Titanium dioxide<\/p>\n<p data-start=\"1012\" data-end=\"1137\"><strong data-start=\"1012\" data-end=\"1042\">Q) What is Blue vitriol (Neela thotha)?<\/strong> <strong data-start=\"1043\" data-end=\"1050\">(A)<\/strong> Copper Sulphate <strong data-start=\"1067\" data-end=\"1074\">(B)<\/strong> Calcium Sulphate <strong data-start=\"1092\" data-end=\"1099\">(C)<\/strong> Iron Sulphate <strong data-start=\"1114\" data-end=\"1121\">(D)<\/strong> Sodium Sulphate<\/p>\n<p data-start=\"1139\" data-end=\"1298\"><strong data-start=\"1139\" data-end=\"1205\">Q27) The chemical used for destroying fungi in water tank is :<\/strong> <strong data-start=\"1206\" data-end=\"1213\">(A)<\/strong> Nitric acid <strong data-start=\"1226\" data-end=\"1233\">(B)<\/strong> Zinc sulphate <strong data-start=\"1248\" data-end=\"1255\">(C)<\/strong> Magnesium sulphate <strong data-start=\"1275\" data-end=\"1282\">(D)<\/strong> Copper Sulphate<\/p>\n<p data-start=\"940\" data-end=\"1036\"><strong data-start=\"940\" data-end=\"972\">Q) Monazite is an ore of &#8211;<\/strong> <strong data-start=\"973\" data-end=\"980\">(A)<\/strong> Zirconium <strong data-start=\"991\" data-end=\"998\">(B)<\/strong> Thorium <strong data-start=\"1007\" data-end=\"1014\">(C)<\/strong> Titanium <strong data-start=\"1024\" data-end=\"1031\">(D)<\/strong> Iron<\/p>\n<p data-start=\"1038\" data-end=\"1289\"><strong data-start=\"1038\" data-end=\"1058\">Q) Mica is a :<\/strong> <strong data-start=\"1059\" data-end=\"1066\">(A)<\/strong> Good conductor of heat and bad conductor of electricity <strong data-start=\"1123\" data-end=\"1130\">(B)<\/strong> Bad conductor of both heat and electricity <strong data-start=\"1174\" data-end=\"1181\">(C)<\/strong> Good conductor of heat and electricity both <strong data-start=\"1226\" data-end=\"1233\">(D)<\/strong> Bad conductor of heat and good conductor of electricity<\/p>\n<p data-start=\"1291\" data-end=\"1450\"><strong data-start=\"1291\" data-end=\"1369\">Q) In which of the following industries is mica used as a raw material &#8211;<\/strong> <strong data-start=\"1370\" data-end=\"1377\">(A)<\/strong> Iron and steel <strong data-start=\"1393\" data-end=\"1400\">(B)<\/strong> Toys <strong data-start=\"1406\" data-end=\"1413\">(C)<\/strong> Glass and pottery <strong data-start=\"1432\" data-end=\"1439\">(D)<\/strong> Electrical<\/p>\n<p data-start=\"232\" data-end=\"492\"><strong data-start=\"232\" data-end=\"309\">Q) Among the following, which statement is incorrect about phosphorous?<\/strong> <strong data-start=\"310\" data-end=\"317\">(A)<\/strong> Phosphorous is stored in water. <strong data-start=\"350\" data-end=\"357\">(B)<\/strong> Phosphorous is soluble in carbon disulphide. <strong data-start=\"403\" data-end=\"410\">(C)<\/strong> Oxides of phosphorous are acidic in nature. <strong data-start=\"455\" data-end=\"462\">(D)<\/strong> Phosphorous oxides are gases.<\/p>\n<p data-start=\"494\" data-end=\"626\"><strong data-start=\"494\" data-end=\"519\">Q) Respiration is :<\/strong> <strong data-start=\"520\" data-end=\"527\">(A)<\/strong> Anabolic process <strong data-start=\"545\" data-end=\"552\">(B)<\/strong> Endothermic process <strong data-start=\"573\" data-end=\"580\">(C)<\/strong> Exothermic process <strong data-start=\"600\" data-end=\"607\">(D)<\/strong> Endergonic process<\/p>\n<p data-start=\"81\" data-end=\"233\"><strong>Q) Identify the antioxidants used in food product-<\/strong> (a) Butylated hydroxy toluene (b) Polyglycostearate (c) Butylated hydroxy anisole (d) Sodium lauryl sulphate, <strong>Select the correct options <\/strong>\u00a0(A) a and c only (B) b and d only (C) a and b only (D) b and c only<\/p>\n<p data-start=\"81\" data-end=\"233\"><strong>Q) Arrange the natural and artificial sweeteners according to their decreasing sweeteners valves-<\/strong> (a) Aspartame (b) Sucralose (c) Saccharin (d) Alitame (e) Fructose, <strong>options (A)<\/strong> a &gt; b&gt;d&gt;e&gt;c <strong>(B)<\/strong> a&gt; b&gt;e&gt;d&gt;c <strong>(C)<\/strong> d&gt; b&gt;c&gt;a&gt;e <strong>(D)<\/strong> c &gt; a &gt; b&gt;e&gt;d<\/p>\n<p data-start=\"81\" data-end=\"233\"><strong data-start=\"81\" data-end=\"155\">Q) Which of the following is a Vat dye &amp; often used to dyeing jeans?<\/strong> <strong data-start=\"156\" data-end=\"163\">(A)<\/strong> Alizarin <strong data-start=\"173\" data-end=\"180\">(B)<\/strong> Methylene blue <strong data-start=\"196\" data-end=\"203\">(C)<\/strong> Crystal violet <strong data-start=\"219\" data-end=\"226\">(D)<\/strong> Indigo<\/p>\n<p data-start=\"586\" data-end=\"722\"><strong data-start=\"586\" data-end=\"652\">Q81) The artificial sweetener which is only stable in cold is:<\/strong> <strong data-start=\"653\" data-end=\"660\">(A)<\/strong> Saccharin <strong data-start=\"671\" data-end=\"678\">(B)<\/strong> Sucralose <strong data-start=\"689\" data-end=\"696\">(C)<\/strong> Aspartame <strong data-start=\"707\" data-end=\"714\">(D)<\/strong> Alitame<\/p>\n<p><strong>Q) The chief ore of copper is<\/strong> <strong>(A)<\/strong> Chalcopyrite <strong>(B)<\/strong> Haematite <strong>(C)<\/strong> Calamine <strong>(D)<\/strong> Bauxite<\/p>\n<p><strong>Q) Which of the following will give acetic acid on hydrolysis?<\/strong> <strong>(A)<\/strong> CH\u2083CH\u2082OH <strong>(B)<\/strong> CH\u2083COCH\u2083 <strong>(C)<\/strong> CH\u2083CHO <strong>(D)<\/strong> CH\u2083CN<\/p>\n<p><strong>Q) The unit of rate constant for a zero order reaction is<\/strong> <strong>(A)<\/strong> sec\u207b\u00b9 <strong>(B)<\/strong> mol litre\u207b\u00b9 sec\u207b\u00b9 <strong>(C)<\/strong> mol\u207b\u00b9 litre sec\u207b\u00b9 <strong>(D)<\/strong> mol sec\u207b\u00b9<\/p>\n<p><strong>Q26) The aggregation of surfactant molecules is known as<\/strong> <strong>(A)<\/strong> micelle <strong>(B)<\/strong> cluster <strong>(C)<\/strong> gel <strong>(D)<\/strong> colloid<\/p>\n<p data-start=\"144\" data-end=\"272\"><strong data-start=\"229\" data-end=\"299\">Q) Among the following statements, the incorrect statement is :<\/strong> <strong data-start=\"300\" data-end=\"307\">(A)<\/strong> The setting of plaster of paris may be catalysed by sodium chloride <strong data-start=\"376\" data-end=\"383\">(B)<\/strong> During setting, the plaster of paris converts into monoclinic form <strong data-start=\"451\" data-end=\"458\">(C)<\/strong> The setting of plaster of paris is retarded by addition of borax <strong data-start=\"524\" data-end=\"531\">(D)<\/strong> Addition of alum to plaster of paris makes the setting very hard<\/p>\n<p data-start=\"144\" data-end=\"272\"><strong data-start=\"59\" data-end=\"97\">Q) Glycine NH\u2082CH\u2082COOH behaves :<\/strong> <strong data-start=\"98\" data-end=\"105\">(A)<\/strong> As a Bronsted acid <strong data-start=\"125\" data-end=\"132\">(B)<\/strong> As a Bronsted base <strong data-start=\"152\" data-end=\"159\">(C)<\/strong> Both as an acid and a base <strong data-start=\"187\" data-end=\"194\">(D)<\/strong> Neither as an acid nor as a base<\/p>\n<p data-start=\"144\" data-end=\"272\"><strong data-start=\"413\" data-end=\"736\">Q) Consider following statements.<br data-start=\"450\" data-end=\"453\" \/><\/strong>I. Liquid sodium is used as a coolant in nuclear reactor.<br data-start=\"510\" data-end=\"513\" \/>II. The formula of Plaster of Paris is 2CaSO\u2084\u00b7H\u2082O.<br data-start=\"563\" data-end=\"566\" \/>III. Bordeaux mixture consists of sodium sulphate and lime.<br data-start=\"625\" data-end=\"628\" \/>IV. Zirconium is a radioactive metal.<br data-start=\"665\" data-end=\"668\" \/>V. Rice fields are source of marsh gas.<br data-start=\"707\" data-end=\"710\" \/><strong data-start=\"413\" data-end=\"736\">Correct statements are :<\/strong> <strong data-start=\"737\" data-end=\"744\">(A)<\/strong> I, II and III <strong data-start=\"759\" data-end=\"766\">(B)<\/strong> II, III and IV <strong data-start=\"782\" data-end=\"789\">(C)<\/strong> I, II and V <strong data-start=\"802\" data-end=\"809\">(D)<\/strong> III, IV and V<\/p>\n<p data-start=\"144\" data-end=\"272\"><strong data-start=\"46\" data-end=\"225\">Q) A Convex lens and a Concave lens, each having same focal length of 25 cm, are put in contact to form a combination of lenses. The power in diopters of this combination is :<\/strong> <strong data-start=\"226\" data-end=\"233\">(A)<\/strong> 25 <strong data-start=\"237\" data-end=\"244\">(B)<\/strong> 50 <strong data-start=\"248\" data-end=\"255\">(C)<\/strong> Infinite <strong data-start=\"265\" data-end=\"272\" data-is-only-node=\"\">(D)<\/strong> Zero<\/p>\n<p data-start=\"144\" data-end=\"272\"><strong data-start=\"271\" data-end=\"465\">Q) The magnifying power of a telescope is 9. When it is adjusted for parallel rays, the distance between the objective and the eyepiece is found to be 20 cm. The focal length of lenses are :<\/strong> <strong data-start=\"466\" data-end=\"473\">(A)<\/strong> 18 cm, 2 cm <strong data-start=\"486\" data-end=\"493\">(B)<\/strong> 11 cm, 9 cm <strong data-start=\"506\" data-end=\"513\">(C)<\/strong> 10 cm, 10 cm <strong data-start=\"527\" data-end=\"534\">(D)<\/strong> 15 cm, 5 cm<\/p>\n<p data-start=\"144\" data-end=\"272\"><strong data-start=\"144\" data-end=\"179\">Q) Resonance is an example of :<\/strong> <strong data-start=\"180\" data-end=\"187\">(A)<\/strong> Tuning fork <strong data-start=\"200\" data-end=\"207\">(B)<\/strong> Forced vibration <strong data-start=\"225\" data-end=\"232\">(C)<\/strong> Free vibration <strong data-start=\"248\" data-end=\"255\">(D)<\/strong> Damped vibration<\/p>\n<p data-start=\"274\" data-end=\"464\"><strong data-start=\"274\" data-end=\"334\">Q) In a secondary coil of step-up transformer there is :<\/strong> <strong data-start=\"335\" data-end=\"342\">(A)<\/strong> less turns of thin wire <strong data-start=\"367\" data-end=\"374\">(B)<\/strong> more turns of thin wire <strong data-start=\"399\" data-end=\"406\">(C)<\/strong> less turns of thick wire <strong data-start=\"432\" data-end=\"439\">(D)<\/strong> more turns of thick wire<\/p>\n<p data-start=\"133\" data-end=\"299\"><strong data-start=\"133\" data-end=\"213\">Q) In frog heart, there are cardiac muscles which consist of fibres called :<\/strong> <strong data-start=\"214\" data-end=\"221\">(A)<\/strong> Purkinje fibres <strong data-start=\"238\" data-end=\"245\">(B)<\/strong> Myonemes <strong data-start=\"255\" data-end=\"262\">(C)<\/strong> Telodendria <strong data-start=\"275\" data-end=\"282\">(D)<\/strong> Columnae carneae<\/p>\n<p data-start=\"301\" data-end=\"435\"><strong data-start=\"301\" data-end=\"337\">Q) A dithecous anther develops :<\/strong> <strong data-start=\"338\" data-end=\"345\">(A)<\/strong> 2 megasporangia <strong data-start=\"362\" data-end=\"369\">(B)<\/strong> 2 microsporangia <strong data-start=\"387\" data-end=\"394\">(C)<\/strong> 4 microsporangia <strong data-start=\"412\" data-end=\"419\">(D)<\/strong> 4 megasporangia<\/p>\n<p data-start=\"437\" data-end=\"600\"><strong data-start=\"437\" data-end=\"509\">Q) During his experiments with Pea, Mendel did not study the trait :<\/strong> <strong data-start=\"510\" data-end=\"517\">(A)<\/strong> Pod colour <strong data-start=\"529\" data-end=\"536\">(B)<\/strong> Position of the flowers <strong data-start=\"561\" data-end=\"568\">(C)<\/strong> Pod shape <strong data-start=\"579\" data-end=\"586\">(D)<\/strong> Flower colour<\/p>\n<p data-start=\"602\" data-end=\"715\"><strong data-start=\"602\" data-end=\"621\">Q) Ovule is a :<\/strong> <strong data-start=\"622\" data-end=\"629\">(A)<\/strong> Microsporangium <strong data-start=\"646\" data-end=\"653\">(B)<\/strong> Megasporangium <strong data-start=\"669\" data-end=\"676\">(C)<\/strong> Microsporophyll <strong data-start=\"693\" data-end=\"700\">(D)<\/strong> Megasporophyll<\/p>\n<p data-pm-slice=\"0 0 []\"><strong data-start=\"161\" data-end=\"194\">Q) Hair present in skin are :<\/strong> <strong data-start=\"195\" data-end=\"202\">(A)<\/strong> Epidermal in origin and made up of dead cell <strong data-start=\"248\" data-end=\"255\">(B)<\/strong> Dermal in origin and made up of dead cell <strong data-start=\"298\" data-end=\"305\">(C)<\/strong> Epidermal in origin and made up of living cell <strong data-start=\"353\" data-end=\"360\" data-is-only-node=\"\">(D)<\/strong> Dermal in origin and made up of living cell<\/p>\n<p data-pm-slice=\"0 0 []\"><strong data-start=\"407\" data-end=\"452\">Q) Cerebral hemisphere is the centre of :<\/strong> <strong data-start=\"453\" data-end=\"460\">(A)<\/strong> Thinking <strong data-start=\"470\" data-end=\"477\">(B)<\/strong> Will power <strong data-start=\"489\" data-end=\"496\">(C)<\/strong> Reasoning <strong data-start=\"507\" data-end=\"514\">(D)<\/strong> All of these<\/p>\n<p data-pm-slice=\"0 0 []\"><strong data-start=\"530\" data-end=\"579\">Q) Position of gene on chromosome is called :<\/strong> <strong data-start=\"580\" data-end=\"587\">(A)<\/strong> Locus <strong data-start=\"594\" data-end=\"601\">(B)<\/strong> Factor <strong data-start=\"609\" data-end=\"616\">(C)<\/strong> Cistron <strong data-start=\"625\" data-end=\"632\">(D)<\/strong> Nucleosome<\/p>\n<p data-pm-slice=\"0 0 []\"><strong data-start=\"152\" data-end=\"213\">Q) An amount of DNA doubles in which phase of Interphase?<\/strong> <strong data-start=\"214\" data-end=\"221\">(A)<\/strong> G1 phase <strong data-start=\"231\" data-end=\"238\">(B)<\/strong> S phase <strong data-start=\"247\" data-end=\"254\">(C)<\/strong> G2 phase <strong data-start=\"264\" data-end=\"271\" data-is-only-node=\"\">(D)<\/strong> M phase<\/p>\n<p data-pm-slice=\"0 0 []\"><strong data-start=\"163\" data-end=\"221\">Q) <\/strong>Tissue system constituted by complex tissue is- (a) Epidermal tissue system (b) Ground tissue system (c) Vascular tissue system &#8211; (A) (b) and (c) are correct (B) (a) and (b) are correct (C) Only (b) is correct (D) Only (c) is correct<\/p>\n<p data-start=\"851\" data-end=\"1013\"><strong data-start=\"163\" data-end=\"221\">Q) Which Law of Mendel is based upon dihybrid crosses?<\/strong> <strong data-start=\"222\" data-end=\"229\">(A)<\/strong> Law of Independent Assortment <strong data-start=\"260\" data-end=\"267\">(B)<\/strong> Law of Dominance <strong data-start=\"285\" data-end=\"292\">(C)<\/strong> Law of Segregation <strong data-start=\"312\" data-end=\"319\" data-is-only-node=\"\">(D)<\/strong> Law of Incomplete Dominance<\/p>\n<p data-start=\"851\" data-end=\"1013\">Q) Amongst following, what will be the percentage of R gene containing gametes resulted by segregation of plant RrYy? (A) 25% (B) 50% (C) 75% (D) 100%<\/p>\n<p data-start=\"851\" data-end=\"1013\">Q) Which of the following genetic disorder is a Mendelian disorder? (A) Haemophilia (B) Sickle cell anaemia (C) Phenyl ketonuria (D) All the above<\/p>\n<p data-start=\"851\" data-end=\"1013\"><strong data-start=\"67\" data-end=\"130\">Q) Increasing order of strength of the following bases is &#8211;<\/strong> <strong data-start=\"131\" data-end=\"138\">(A)<\/strong> Cl\u207b &lt; CH\u2083COO\u207b &lt; NH\u2083 <strong data-start=\"157\" data-end=\"164\">(B)<\/strong> CH\u2083COO\u207b &lt; NH\u2083 &lt; Cl\u207b <strong data-start=\"183\" data-end=\"190\">(C)<\/strong> CH\u2083COO\u207b &lt; Cl\u207b &lt; NH\u2083 <strong data-start=\"209\" data-end=\"216\" data-is-only-node=\"\">(D)<\/strong> NH\u2083 &lt; CH\u2083COO\u207b &lt; Cl\u207b<\/p>\n<p data-start=\"851\" data-end=\"1013\"><strong data-start=\"51\" data-end=\"88\">Q) The term &#8220;gene&#8221; was coined by: <\/strong><strong data-start=\"91\" data-end=\"98\">(A)<\/strong> Mendel <strong data-start=\"108\" data-end=\"115\">(B)<\/strong> Bateson <strong data-start=\"126\" data-end=\"133\">(C)<\/strong> Shull <strong data-start=\"142\" data-end=\"149\">(D)<\/strong> Johannsen<\/p>\n<p data-start=\"851\" data-end=\"1013\"><strong data-start=\"851\" data-end=\"905\">Q) Who delivered the principle of &#8216;jumping genes&#8217;?<\/strong> <strong data-start=\"906\" data-end=\"913\">(A)<\/strong> Gregor Johann Mendel <strong data-start=\"935\" data-end=\"942\">(B)<\/strong> Thomas Hunt Morgan <strong data-start=\"962\" data-end=\"969\">(C)<\/strong> Barbara McClintock <strong data-start=\"989\" data-end=\"996\">(D)<\/strong> Watson and Crick<\/p>\n<p data-start=\"675\" data-end=\"844\"><strong data-start=\"675\" data-end=\"734\">Q) Har Gobind Khorana is credited for the discovery of:<\/strong> <strong data-start=\"735\" data-end=\"742\">(A)<\/strong> Synthesis of Protein <strong data-start=\"764\" data-end=\"771\">(B)<\/strong> Synthesis of Gene <strong data-start=\"790\" data-end=\"797\">(C)<\/strong> Synthesis of Nitrogenous <strong data-start=\"823\" data-end=\"830\">(D)<\/strong> None of these<\/p>\n<p data-start=\"554\" data-end=\"668\"><strong data-start=\"554\" data-end=\"605\">Q) In laboratory, who did the synthesis of DNA?<\/strong> <strong data-start=\"606\" data-end=\"613\">(A)<\/strong> Miller <strong data-start=\"621\" data-end=\"628\">(B)<\/strong> Khorana <strong data-start=\"637\" data-end=\"644\">(C)<\/strong> D. Weris <strong data-start=\"654\" data-end=\"661\">(D)<\/strong> Kelvin<\/p>\n<p data-start=\"570\" data-end=\"755\"><strong data-start=\"218\" data-end=\"280\">Q) Which compound present in DNA does not form amino acid?<\/strong> <strong data-start=\"281\" data-end=\"288\">(A)<\/strong> Adenine <strong data-start=\"297\" data-end=\"304\">(B)<\/strong> Tyrosine <strong data-start=\"314\" data-end=\"321\">(C)<\/strong> Guanine <strong data-start=\"330\" data-end=\"337\">(D)<\/strong> Cytosine<\/p>\n<p data-start=\"570\" data-end=\"755\"><strong data-start=\"570\" data-end=\"626\">Q) The DNA double helix structure was discovered by:<\/strong> <strong data-start=\"627\" data-end=\"634\">(A)<\/strong> James Watson and Francis Crick <strong data-start=\"666\" data-end=\"673\">(B)<\/strong> Rosalind Franklin and Maurice Wilkins <strong data-start=\"712\" data-end=\"719\">(C)<\/strong> Linus Pauling <strong data-start=\"734\" data-end=\"741\">(D)<\/strong> Gregor Mendel<\/p>\n<p><strong data-start=\"263\" data-end=\"317\">Q) Chromosomal theory of inheritance was given by:<\/strong> <strong data-start=\"318\" data-end=\"325\">(A)<\/strong> Waldeiyer <strong data-start=\"336\" data-end=\"343\">(B)<\/strong> Mendel <strong data-start=\"351\" data-end=\"358\">(C)<\/strong> Sutton and Boveri <strong data-start=\"377\" data-end=\"384\">(D)<\/strong> Muller<\/p>\n<p><strong data-start=\"788\" data-end=\"803\">Q) Gene is:<\/strong> <strong data-start=\"804\" data-end=\"811\">(A)<\/strong> A segment of DNA <strong data-start=\"829\" data-end=\"836\">(B)<\/strong> A segment of DNA and histone <strong data-start=\"866\" data-end=\"873\">(C)<\/strong> A segment of DNA, RNA and histone <strong data-start=\"908\" data-end=\"915\">(D)<\/strong> All of the above<\/p>\n<p><strong data-start=\"0\" data-end=\"86\" data-is-only-node=\"\">Q) Mendel took &#8212;&#8212; contrasting characteristics of pea plant in his experiments.<\/strong> <strong data-start=\"87\" data-end=\"94\">(A)<\/strong> 08 <strong data-start=\"98\" data-end=\"105\">(B)<\/strong> 07 <strong data-start=\"109\" data-end=\"116\">(C)<\/strong> 06 <strong data-start=\"120\" data-end=\"127\">(D)<\/strong> 05<\/p>\n<p><strong>Q) In pea plant, Green is a dominating trait of which of the following, studied by Mendel?<\/strong> <strong>(A)<\/strong> Seed <strong>(B)<\/strong> Flower <strong>(C)<\/strong> Pod <strong>(D)<\/strong> Stem<\/p>\n<p><strong data-start=\"0\" data-end=\"104\" data-is-only-node=\"\">Q) If both genotype and phenotype shows the same ratio of 1:2:1 in the F2 generation, it shows that-<\/strong> <strong data-start=\"105\" data-end=\"112\">(A)<\/strong> The plants are showing incomplete dominance in monohybrid cross. <strong data-start=\"178\" data-end=\"185\">(B)<\/strong> The plants are showing complete dominance in monohybrid cross. <strong data-start=\"249\" data-end=\"256\">(C)<\/strong> It is an example of dihybrid cross. <strong data-start=\"293\" data-end=\"300\">(D)<\/strong> It is an example of co-dominance.<\/p>\n<p><strong data-start=\"0\" data-end=\"70\" data-is-only-node=\"\">Q) In a human body, how many bones are found at the time of birth?<\/strong> <strong data-start=\"71\" data-end=\"78\">(A)<\/strong> 273 <strong data-start=\"83\" data-end=\"90\">(B)<\/strong> 270 <strong data-start=\"95\" data-end=\"102\">(C)<\/strong> 201 <strong data-start=\"107\" data-end=\"114\">(D)<\/strong> 208<\/p>\n<p><strong data-start=\"57\" data-end=\"116\">Q) Which Law of Mendel is based upon Di hybrid crosses?<\/strong> <strong data-start=\"117\" data-end=\"124\">(A)<\/strong> Law of Independent assortment <strong data-start=\"155\" data-end=\"162\">(B)<\/strong> Law of Dominance <strong data-start=\"180\" data-end=\"187\">(C)<\/strong> Law of Segregation <strong data-start=\"207\" data-end=\"214\">(D)<\/strong> Law of Incomplete dominance<\/p>\n<p><strong data-start=\"55\" data-end=\"175\">Q) Assembling multiple desirable genes from multiple parents into a single genotype for a specific trait is known as<\/strong> <strong data-start=\"176\" data-end=\"183\">(A)<\/strong> Multiple resistance <strong data-start=\"204\" data-end=\"211\">(B)<\/strong> Multiline variety <strong data-start=\"230\" data-end=\"237\">(C)<\/strong> Gene interaction <strong data-start=\"255\" data-end=\"262\">(D)<\/strong> Gene pyramiding<\/p>\n<p data-start=\"477\" data-end=\"653\"><strong data-start=\"477\" data-end=\"563\">Q) During studies with Pea which of the following trait was not studied by Mendel?<\/strong> <strong data-start=\"564\" data-end=\"571\">(A)<\/strong> Cotyledon colour <strong data-start=\"589\" data-end=\"596\">(B)<\/strong> Pod shape <strong data-start=\"607\" data-end=\"614\">(C)<\/strong> Seed coat colour <strong data-start=\"632\" data-end=\"639\">(D)<\/strong> Flower colour<\/p>\n<p data-start=\"655\" data-end=\"828\"><strong data-start=\"61\" data-end=\"237\">Q) The valency shell of element A contains 3 electrons while the valency shell of element B contains 6 electrons, the probable formula of compound formed between A and B is<\/strong> <strong data-start=\"238\" data-end=\"245\">(A)<\/strong> AB2 <strong data-start=\"250\" data-end=\"257\">(B)<\/strong> A3B6 <strong data-start=\"263\" data-end=\"270\">(C)<\/strong> A6B3 <strong data-start=\"276\" data-end=\"283\">(D)<\/strong> A2B3<\/p>\n<p data-start=\"347\" data-end=\"413\"><strong data-start=\"347\" data-end=\"411\">Q) Consider following statements: Roasting is carried out to &#8211; 1. <\/strong>Convert sulphide ore into oxide, <strong>2.<\/strong> Melt the ore, <strong>3.<\/strong>Remove moisture, water of hydration and organic matter, <strong>4.<\/strong> Reduction of ore by carbon, <strong>5.<\/strong> Remove sulphur and arsenic in form of volatile oxide <strong data-start=\"619\" data-end=\"645\">Correct statements are<\/strong> <strong data-start=\"646\" data-end=\"653\">(A)<\/strong> 1, 3 and 5 <strong data-start=\"665\" data-end=\"672\">(B)<\/strong> 2, 3 and 4 <strong data-start=\"684\" data-end=\"691\">(C)<\/strong> 3, 4 and 5 <strong data-start=\"703\" data-end=\"710\">(D)<\/strong> 1, 2 and 4<\/p>\n<p data-start=\"347\" data-end=\"413\"><strong data-start=\"108\" data-end=\"206\">Q) Which of the following cell organelles play the most significant role in protein synthesis?<\/strong> <strong data-start=\"207\" data-end=\"214\">(A)<\/strong> Lysosome and Centrosome <strong data-start=\"239\" data-end=\"246\">(B)<\/strong> Endoplasmic reticulum and Ribosome <strong data-start=\"282\" data-end=\"289\">(C)<\/strong> Golgi apparatus and Mitochondria <strong data-start=\"323\" data-end=\"330\">(D)<\/strong> Lysosome and Mitochondria<\/p>\n<p data-start=\"347\" data-end=\"413\"><strong data-start=\"363\" data-end=\"443\">Q) The cellular and molecular control of programmed cell death are known as:<\/strong> <strong data-start=\"444\" data-end=\"451\">(A)<\/strong> Apoptosis <strong data-start=\"462\" data-end=\"469\">(B)<\/strong> Ageing <strong data-start=\"477\" data-end=\"484\">(C)<\/strong> Degeneration <strong data-start=\"498\" data-end=\"505\">(D)<\/strong> Necrosis<\/p>\n<p data-start=\"347\" data-end=\"413\"><strong data-start=\"521\" data-end=\"598\">Q) One term that generates the maximum number of ATP atoms in our system?<\/strong> <strong data-start=\"599\" data-end=\"606\">(A)<\/strong> Decomposition of glucose <strong data-start=\"632\" data-end=\"639\">(B) Kreb&#8217;s cycle (C)<\/strong> Last respiratory series <strong data-start=\"685\" data-end=\"692\">(D)<\/strong> Water decomposition<\/p>\n<hr \/>\n<p><strong>Q)<\/strong> <strong data-start=\"2204\" data-end=\"2255\">Number of electrons in one Coulomb charge are-? <\/strong>(A) 5.48\u00d710\u00b2\u2079 (A) 6.25\u00d710\u00b9\u2078 (A) 1.8\u00d710\u00b9\u2079 (D) 62.5\u00d710\u00b9\u2078<\/p>\n<p data-start=\"286\" data-end=\"475\"><strong>Q) At which site is the protein of viral coat synthesized?<\/strong> (A) Plasma membrane (B) Mitochondria of Host (C) Ribosomes of Host (D) RNA of Virus<\/p>\n<p data-start=\"286\" data-end=\"475\"><strong>Q) Prokaryotic and Eukaryotic flagella differ in the-?<\/strong> (A) Type of movement &amp; placement (B) Location &amp; mode of functioning (C) Microtubular structure and function (D) Microtubular organization and type of movement<\/p>\n<p data-start=\"286\" data-end=\"475\"><strong>Q) Choose the correct sequence of taxonomic categories in Linnean Hierarchy ?<\/strong><br data-start=\"2097\" data-end=\"2100\" \/>(A) Phylum \u2013 Class \u2013 Family \u2013 Tribe \u2013 Order \u2013 Genus \u2013 Species<br data-start=\"2161\" data-end=\"2164\" \/>(B) Division \u2013 Class \u2013 Order \u2013 Family \u2013 Tribe \u2013 Genus \u2013 Species<br data-start=\"2227\" data-end=\"2230\" \/>(C) Order \u2013 Class \u2013 Tribe \u2013 Division \u2013 Family \u2013 Genus \u2013 Species<br data-start=\"2293\" data-end=\"2296\" \/>(D) Phylum \u2013 Class \u2013 Tribe \u2013 Order \u2013 Family \u2013 Genus \u2013 Species<\/p>\n<p data-start=\"286\" data-end=\"475\"><strong>Q) When the current flowing in a circular coil is doubled and the number of turns in it is halved, the magnetic field at its centre will become?<\/strong> (A) double (B) half (C) four times (D) same<\/p>\n<p data-start=\"286\" data-end=\"475\"><strong>Q) The isotopes of an element have the same nucleus?<\/strong> (A) Neutron Number (B) Proton Number (C) Total sum of Neutron and Proton Number (D) Both Neutron and Proton Number<\/p>\n<p data-start=\"286\" data-end=\"475\"><strong>Q) The names associated with first man-made recombinant DNA molecules is-?<\/strong> (A) Paul Berg (B) Annie Chang (C) Stanley &amp; Boyer (D) All of the above<\/p>\n<p data-start=\"286\" data-end=\"475\"><strong>Q) Centrosome is found in-?<\/strong> (A) Cytoplasm (B) Nucleolus (C) Chromosomes (D) Nucleus<\/p>\n<p data-start=\"286\" data-end=\"475\"><strong>Q) Which of the following are characteristics of Genetic Code?<\/strong> (a) Code is Triplet (b) Universal (c) Ambiguous (d) Degenerate (A) (a), (b), (c) are correct (B) (a), (b), (d) are correct (C) (b), (c), (d) are correct (D) (a), (b), (c), (d) all are correct<\/p>\n<p data-start=\"286\" data-end=\"475\"><strong>Q)<\/strong> <strong data-start=\"362\" data-end=\"424\">Which of the following is found in matrix of Mitochondria? <\/strong>(A) D.N.A. (B) R.N.A. (C) Ribosome (70S) (D) All of these<\/p>\n<hr \/>\n<p data-start=\"286\" data-end=\"475\"><strong>Q) Sugar is extracted from sugarcane and also from the crops of<\/strong> <strong>?<\/strong> (A) Potato (B) Sweet Potato (C) Beet (D) Tapioca<\/p>\n<p data-start=\"286\" data-end=\"475\">Q) Each trophic level has a certain mass of living material at a particular time is called as ? (A) Food crops (B) Feed crop (C) Fiber crop (D) Standing crop<\/p>\n<p data-start=\"286\" data-end=\"475\"><strong>Q) The capacity of a parallel plate capacitor depends on &#8211; <\/strong>(A) Nature of the metal (B) Distance between the plates (C) Thickness of the plates (D) Potential difference between the plates<\/p>\n<p><strong>Q)<\/strong> <strong data-start=\"2087\" data-end=\"2136\">\u03b1-particle is the nucleus of following atom-? <\/strong>(A) Hydrogen (B) Deuterium (C) Helium (D) Tritium<\/p>\n<p><strong>Q) The S.I. unit of decay constant is-?<\/strong> (A) Becquerel (B) Rutherford (C) Curie (D) Thomson<\/p>\n<p><strong>Q) Which of the following law gives the direction of the induced e.m.f.?<\/strong> (A) Faraday\u2019s law (B) Lenz\u2019s law (C) Maxwell\u2019s law (D) Ampere\u2019s law<\/p>\n<p><strong>Q) The linear magnification of objective and eye lens of a compound microscope are m\u2080 and m\u2091 respectively. The magnifying power of microscope will be-? <\/strong>(A) m\u2080 + m\u2091 (B) m\u2080 \u2212 m\u2091 (C) m\u2080 \u00d7 m\u2091 (D) m\u2080\/m\u2091<\/p>\n<p><strong>Q) The wavelength of a photon is 5000 \u00c5, its momentum will be-? <\/strong>(A) 1.32\u00d710\u207b\u00b2\u2077 kg m\/s (B) 1.5\u00d710\u207b\u00b2\u2077 kg m\/s (C) 2.32\u00d710\u207b\u00b2\u2077 kg m\/s (D) 5.0\u00d710\u207b\u00b2\u2077 kg m\/s<\/p>\n<p><strong>Q) Assertion (A): <\/strong>\u03b1-rays have greater ionising power than \u03b2-rays. <strong>Reason (R):<\/strong> \u03b1-particle is the helium nucleus.<strong>?<br data-start=\"1129\" data-end=\"1132\" \/><\/strong>(A) Assertion (A) and Reason (R) both are correct and Reason (R) is the correct explanation of Assertion (A)<br data-start=\"1240\" data-end=\"1243\" \/>(B) Assertion (A) and Reason (R) both are correct but Reason (R) is not the correct explanation of Assertion (A)<br data-start=\"1355\" data-end=\"1358\" \/>(C) Assertion (A) is correct but Reason (R) is incorrect<br data-start=\"1414\" data-end=\"1417\" \/>(D) Assertion (A) is incorrect but Reason (R) is correct<\/p>\n<p><strong>Q)<\/strong> <strong data-start=\"1483\" data-end=\"1566\">The shape of a molecule which has 3 bond pairs (BP) and one lone pair (LP) is-? <\/strong>(A) Octahedral (B) Pyramidal (C) Triangular planar (D) Tetrahedral<\/p>\n<p data-start=\"103\" data-end=\"516\"><strong data-start=\"111\" data-end=\"196\">Q) Assertion (A): <\/strong>Nuclei of different atoms have same size.<strong data-start=\"111\" data-end=\"196\"> Reason (R): <\/strong>R = R\u2080 A\u00b9\u141f\u00b3<strong data-start=\"111\" data-end=\"196\">?<\/strong><br data-start=\"196\" data-end=\"199\" \/>(A) Both Assertion (A) and Reason (R) are true and Reason (R) is correct explanation of Assertion (A)<br data-start=\"300\" data-end=\"303\" \/>(B) Both Assertion (A) and Reason (R) are true but Reason (R) is not the correct explanation of Assertion (A)<br data-start=\"412\" data-end=\"415\" \/>(C) Assertion (A) is true but Reason (R) is false<br data-start=\"464\" data-end=\"467\" \/>(D) Assertion (A) is false and Reason (R) is true<\/p>\n<p data-start=\"518\" data-end=\"802\"><strong data-start=\"518\" data-end=\"525\">Q)<\/strong> <strong data-start=\"526\" data-end=\"723\">As shown in figure light rays of blue (B), green (G) and red (R) wavelengths are incident on prism. The ray of light will be transmitted through the face AC (\u03bc\u1d63 = 1.39, \u03bcg = 1.424, \u03bcb = 1.476)?<\/strong><br data-start=\"723\" data-end=\"726\" \/>(A) Blue rays (B) Green rays (C) Red rays (D) Blue and Green rays both<\/p>\n<p data-start=\"804\" data-end=\"1006\"><strong>Q) <\/strong><strong data-start=\"148\" data-end=\"206\">During Mitosis, ER &amp; Nucleolus begin to disappear at-? <\/strong>(A) Late prophase (B) Early Metaphase (C) Late Metaphase (D) Early Prophase<\/p>\n<p data-start=\"286\" data-end=\"475\"><strong data-start=\"286\" data-end=\"293\">Q)<\/strong> <strong data-start=\"294\" data-end=\"353\">The active site of an enzyme is formed by some of its-? <\/strong>(A) R group of amino acids (B) Amino groups of amino acids (C) Carboxyl groups of amino acids (D) Exposed Sulphur bonds<\/p>\n<p data-start=\"286\" data-end=\"475\"><strong>Q) The F\u2082 Ratio of Recessive Epistasis is-?<\/strong> (A) 9:6:1 (B) 9:3:4 (C) 12:3:1 (D) 9:6:9<\/p>\n<p data-start=\"286\" data-end=\"475\"><strong>Q) Tissue level body organization occurs in ?<\/strong> (A) Protozoa (B) Porifera (C) Coelenterates (D) Helminthes<\/p>\n<p data-start=\"286\" data-end=\"475\"><strong>Q) For n-type semiconductor, it is stated that-<br data-start=\"1121\" data-end=\"1124\" \/><\/strong>(I) There are more number of electrons and less number of holes.<br data-start=\"1188\" data-end=\"1191\" \/>(II) There are less number of electrons and less number of holes.<br data-start=\"1256\" data-end=\"1259\" \/>(III) It is negatively charged.<br data-start=\"1290\" data-end=\"1293\" \/>(IV) It is electrically neutral.<strong data-start=\"1075\" data-end=\"1356\"><br data-start=\"1325\" data-end=\"1328\" \/>Select the correct answer &#8211; <\/strong>(A) Only (I) is correct (B) Only (I) and (III) are correct (C) Only (II), (III) and (IV) are correct (D) Only (I) and (IV) are correct<\/p>\n<p data-start=\"286\" data-end=\"475\"><strong>Q)<\/strong> <strong data-start=\"495\" data-end=\"561\">Endosperm persist in mature seed among which of the following? <\/strong>(A) Pea (B) Castor (C) Ground nut (D) Beans<\/p>\n<p data-start=\"286\" data-end=\"475\"><strong>Q) Arrange the phases of prophase I stage of meiotic division-<\/strong> (a) Pachytene (b) Diplotene (c) Zygotene (d) Leptotene<br \/>\nA. (d)\u2192(c)\u2192(a)\u2192(b)<br \/>\nB. (d)\u2192(c)\u2192(b)\u2192(a)<br \/>\nC. (d)\u2192(b)\u2192(c)\u2192(a)<br \/>\nD. (d)\u2192(a)\u2192(c)\u2192(b)<\/p>\n<p data-start=\"286\" data-end=\"475\"><strong>Q)<\/strong> <strong data-start=\"798\" data-end=\"892\">Assertion (A): Primary Endosperm nucleus is Triploid.<br data-start=\"853\" data-end=\"856\" \/>Reason (R): Develops from syngamy.<\/strong><br data-start=\"892\" data-end=\"895\" \/>(A) Assertion (A) and Reason (R) are correct<br data-start=\"939\" data-end=\"942\" \/>(B) Assertion (A) is correct, Reason (R) is wrong<br data-start=\"991\" data-end=\"994\" \/>(C) Assertion (A) &amp; Reason (R) both are wrong<br data-start=\"1039\" data-end=\"1042\" \/>(D) Assertion (A) is wrong, Reason (R) is correct<\/p>\n<p data-start=\"286\" data-end=\"475\"><strong>Q) Which of the following are synthetic auxin?<\/strong> (a) L.A.A. (b) I.B.A. (c) \u039d.\u0391.\u0391. (d) 2,4 D A. (a) &amp; (b) are correct B. (c) &amp; (d) are correct C. (a) &amp; (c) are correct D. (b) &amp; (d) are correct<\/p>\n<p data-start=\"286\" data-end=\"475\"><strong>Q)<\/strong> <strong data-start=\"1266\" data-end=\"1323\">A causal organism of Potato spindle tuber disease is &#8211; <\/strong>(A) Bacteria (B) Viruses (C) Viroids (D) Prions<\/p>\n<hr \/>\n<p><strong>Q1) What is the SI unit of energy?<\/strong> (A) Newton (B) Joule (C) Watt (D) Calorie<\/p>\n<p><strong>Q2) At the highest point of a free fall, which energy is maximum?<\/strong> (A) Kinetic energy (B) Chemical energy (C) Potential energy (D) Mechanical energy<\/p>\n<p><strong>Q3) If two people of equal weight climb a rope, who uses more power?<\/strong> (A) The one who climbs slower (B) The one who climbs faster (C) Both use equal power (D) The taller one<\/p>\n<p><strong>Q4) What happens to kinetic energy as an object falls freely under gravity?<\/strong> (A) It decreases (B) It increases (C) It remains constant (D) It becomes zero<\/p>\n<p><strong>Q5) Power is defined as:<\/strong> (A) Work \u00d7 Time (B) Work \/ Time (C) Time \/ Work (D) Energy + Time<\/p>\n<p><strong>Q6) What is the SI unit of Power?<\/strong> (A) Newton (B) Joule (C) Watt (D) Calorie<\/p>\n<p><strong>Q7) The unit of energy is &#8211;<\/strong>\u00a0(A) Electron &#8211; volt (B) Joule (C) Kilowatt-hour (D) All of the above<\/p>\n<p><strong>Q8) Electron volt is a unit of &#8211;<\/strong> (A) Energy (B) Force (C) Frequency (D) Current<\/p>\n<p><strong>Q9) Which is not unit of pressure?<\/strong> (A) Torr (B) Bar (C) Newton per metre (D) Pascal<\/p>\n<p><strong>Q10) Light of wave lengths 5500\u00b0A falls on a plane reflecting surface. The reflected wave lengths is\u2013<\/strong> (A) 5500\u00b0A (B) &lt; 5500\u00b0A (C) &gt; 5500\u00b0A (D) Cannot say anything<\/p>\n<blockquote><p>An object of mass m moving with a velocity v is approaching a second object of the same mass but at rest. What is the total kinetic energy. E, of the two objects as viewed from the centre of mass?<\/p><\/blockquote>\n<p>Q11) The Young\u2019s modulus of a perfectly rigid body is \u2013 (A) zero (B) equal to 1 (C) less than 1 (D) infinity<\/p>\n<p>Q12) The rate of change of the momentum is equal to \u2013 (A) Velocity (B) Acceleration (C) Force (D) Mass<\/p>\n<p>Q13) In an isothermal process, the internal energy of the system \u2013 (A) increases (B) decreases (C) changes (D) remains constant<\/p>\n<p><strong>Q14) Match the following (Group\u00a0 I and II)<\/strong><br data-start=\"1071\" data-end=\"1074\" \/>(a) 1 Astronomical unit &#8211; (I) 9.46 \u00d7 10\u00b9\u2075 meter<br data-start=\"1097\" data-end=\"1100\" \/>(b) 1 Parsec &#8211; (II) 1 \u00d7 10\u207b\u00b9\u2070 meter<br data-start=\"1112\" data-end=\"1115\" \/>(c) 1 Light year &#8211; (III) 1.496 \u00d7 10\u00b9\u00b9 meter<br data-start=\"1131\" data-end=\"1134\" \/>(d) 1 Angstrom &#8211; (IV) 3.08 \u00d7 10\u00b9\u2076 meter<br data-start=\"1148\" data-end=\"1151\" \/><strong>Choose the correct option<\/strong><br data-start=\"1208\" data-end=\"1211\" \/>(A) a-III, b-IV, c-II, d-I<br data-start=\"1289\" data-end=\"1292\" \/>(B) a-III, b-IV, c-I, d-II<br data-start=\"1318\" data-end=\"1321\" \/>(C) a-IV, b-III, c-II, d-I<br data-start=\"1347\" data-end=\"1350\" \/>(D) a-IV, b-III, c-I, d-II<\/p>\n<p><strong>Q15) Make correct pair (Column I and Column II)<\/strong><br data-start=\"1423\" data-end=\"1426\" \/>(I) Unit of Speed &#8211; (a) meter<br data-start=\"1443\" data-end=\"1446\" \/>(II) Velocity &#8211; (b) displacement\/time<br data-start=\"1459\" data-end=\"1462\" \/>(III) Displacement &#8211; (c) meter\/second\u00b2<br data-start=\"1480\" data-end=\"1483\" \/>(IV) Acceleration &#8211; (d) meter\/second<br data-start=\"1500\" data-end=\"1503\" \/><strong>Choose the correct option<\/strong><br data-start=\"1512\" data-end=\"1515\" \/>(A) I-b, II-a, III-c, IV-d<br data-start=\"1616\" data-end=\"1619\" \/>(B) I-d, II-a, III-b, IV-c<br data-start=\"1645\" data-end=\"1648\" \/>(C) I-d, II-b, III-a, IV-c<br data-start=\"1674\" data-end=\"1677\" \/>(D) I-c, II-b, III-a, IV-d<\/p>\n<p><strong>Q16) Match the following (Column I and Column II)<\/strong><br data-start=\"288\" data-end=\"291\" \/>(a) Lysosome &#8211; (I) Secretion<br data-start=\"303\" data-end=\"306\" \/>(b) Golgi apparatus &#8211; (II) Digestion<br data-start=\"325\" data-end=\"328\" \/>(c) Mitochondria &#8211; (III) Excretory Material<br data-start=\"344\" data-end=\"347\" \/>(d) Vacuole &#8211; (IV) Energy Formation<br \/>\n<strong>Choose the correct option<\/strong><br data-start=\"372\" data-end=\"375\" \/>(A) a-II, b-I, c-III, d-IV<br data-start=\"485\" data-end=\"488\" \/>(B) a-II, b-I, c-IV, d-III<br data-start=\"514\" data-end=\"517\" \/>(C) a-II, b-IV, c-I, d-III<br data-start=\"543\" data-end=\"546\" \/>(D) a-II, b-III, c-IV, d-I<\/p>\n<p><strong>Q17) Arrange the Trophic levels in a Food Chain \u2013<\/strong><br data-start=\"629\" data-end=\"632\" \/>(a) Man<br data-start=\"639\" data-end=\"642\" \/>(b) Phytoplankton<br data-start=\"659\" data-end=\"662\" \/>(c) Fishes<br data-start=\"672\" data-end=\"675\" \/>(d) Zooplanktons<br \/>\n<strong>Choose the correct option<\/strong><br data-start=\"691\" data-end=\"694\" \/>(A) (b)\u2192(d)\u2192(a)\u2192(c)<br data-start=\"713\" data-end=\"716\" \/>(B) (b)\u2192(d)\u2192(c)\u2192(a)<br data-start=\"735\" data-end=\"738\" \/>(C) (b)\u2192(c)\u2192(d)\u2192(a)<br data-start=\"757\" data-end=\"760\" \/>(D) (b)\u2192(c)\u2192(a)\u2192(d)<\/p>\n<p><strong>Q18) Which of the following is a part of transcription unit in DNA?<\/strong> (A) Promoter (B) Structural genes (C) Terminator (D) All of these<\/p>\n<p><strong>Q19) All of the following are nutrients found in food except &#8211;<\/strong> (A) Plasma (B) Proteins (C) Carbohydrates (D) Vitamins<\/p>\n<p><strong>Q20) Amylase in saliva begins the breakdown of carbohydrates into &#8211;<\/strong> (A) Fatty acid (B) Amino acid (C) Polypeptides (D) Simple sugar<\/p>\n<p><strong>Q21) Which of these is not considered a nutrient?<\/strong> (A) Vitamins (B) Minerals (C) Fiber (D) Fats<\/p>\n<p><strong>Q22) All of the following are needed for strong bones except<\/strong> (A) Magnesium (B) Thiamin (C) Calcium (D) Vitamin-D<\/p>\n<p>Q23) What is the unit for the measure of electrical pressure or electromotive force? (A) amp (B) ohm (C) volt (D) watt<\/p>\n<p>Q24) Which of the following determines total power in a series circuit? (A) source voltage multiplied by the current (B) total voltage applied to the circuit (C) current flowing through a switch (D) average of the wattage consumed by each resistor<\/p>\n<p>Q25) A current I flows along the length of an infinitely long, straight, thin walled pipe. Then: (A) the magnetic field is zero only on the axis of the pipe. (B) the magnetic field is different at different points inside the pipe. (C) the magnetic field at any point inside the pipe is zero. (D) the magnetic field at all points inside the pipe is the same, but not zero.<\/p>\n<p>Q26) The number of compressions or rarefactions per unit time gives \u2013 (A) Frequency (B) Time period (C) Amplitude (D) Pitch<\/p>\n<p><strong>Q27) Match the image formed by concave mirror for different positions of the following objects:<\/strong><br data-start=\"1815\" data-end=\"1818\" \/>(A) Beyond C \u2192 (I) At C<br data-start=\"1841\" data-end=\"1844\" \/>(B) At C \u2192 (II) Between F &amp; C<br data-start=\"1873\" data-end=\"1876\" \/>(C) Between C &amp; F \u2192 (III) At infinity<br data-start=\"1913\" data-end=\"1916\" \/>(D) At F \u2192 (IV) Beyond C<br data-start=\"1940\" data-end=\"1943\" \/><strong>Options:<\/strong><br data-start=\"1951\" data-end=\"1954\" \/>(A) a-II, b-I, c-IV, d-III<br data-start=\"1980\" data-end=\"1983\" \/>(B) a-III, b-I, c-IV, d-II<br data-start=\"2009\" data-end=\"2012\" \/>(C) a-II, b-IV, c-I, d-III<br data-start=\"2038\" data-end=\"2041\" \/>(D) a-IV, b-I, c-II, d-III<\/p>\n<p><strong>Q28) Arrange the following physical quantities in terms of the ascending power of dimension unit T (Time) in their dimensional formulas.<\/strong><br data-start=\"2729\" data-end=\"2732\" \/>(J) Moment of inertia<br data-start=\"2753\" data-end=\"2756\" \/>(K) Universal Gas constant<br data-start=\"2782\" data-end=\"2785\" \/>(L) Power<br data-start=\"2794\" data-end=\"2797\" \/>(M) Momentum<br data-start=\"2809\" data-end=\"2812\" \/><strong>Options:<\/strong><br data-start=\"2820\" data-end=\"2823\" \/>(A) M &lt; L &lt; K &lt; J<br data-start=\"2840\" data-end=\"2843\" \/>(B) K &lt; L &lt; M &lt; J<br data-start=\"2860\" data-end=\"2863\" \/>(C) L &lt; K &lt; M &lt; J<br data-start=\"2880\" data-end=\"2883\" \/>(D) L &lt; M &lt; J &lt; K<\/p>\n<p>Q29) In a uniform circular motion: (A) both velocity and acceleration remain constant (B) acceleration and speed remain constant but velocity changes (C) both acceleration and velocity change (D) both acceleration and speed are constant<\/p>\n<p>Q30) If the units of length and force are increased four times each, then the unit of energy is increased: (A) 4 times (B) 16 times (C) 8 times (D) No increase<\/p>\n<p>Q31) SI unit of gas constant is: (A) calorie\/\u00b0C (B) joule\/mole (C) joule\/k mole (D) joule\/kg<\/p>\n<p>Q32) Match <strong data-start=\"1737\" data-end=\"1760\">List-I (Pollutants)<\/strong> and <strong data-start=\"1763\" data-end=\"1799\">List-II (Measurement Techniques)<\/strong> <br data-start=\"1799\" data-end=\"1802\" \/>(a) CO | (i) Gravimetric<br data-start=\"1826\" data-end=\"1829\" \/>(b) NO\u2082 | (ii) Chemiluminescence<br data-start=\"1861\" data-end=\"1864\" \/>(c) SO\u2082 | (iii) U.V. Fluorescence<br data-start=\"1897\" data-end=\"1900\" \/>(d) PM\u2082.\u2085 | (iv) NDIR<br \/>\n<strong data-start=\"1925\" data-end=\"1935\">Codes:<\/strong><br data-start=\"1935\" data-end=\"1938\" \/>(A) (a)\u2013(iii), (b)\u2013(i), (c)\u2013(ii), (d)\u2013(iv)<br data-start=\"1980\" data-end=\"1983\" \/>(B) (a)\u2013(i), (b)\u2013(ii), (c)\u2013(iii), (d)\u2013(iv)<br data-start=\"2025\" data-end=\"2028\" \/>(C) (a)\u2013(iv), (b)\u2013(iii), (c)\u2013(i), (d)\u2013(ii)<br data-start=\"2070\" data-end=\"2073\" \/>(D) (a)\u2013(iv), (b)\u2013(ii), (c)\u2013(iii), (d)\u2013(i)<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q33) The image formed by convex mirror is always \u2013 (A) Real (B) Enlarged (C) Virtual and Enlarged (D) Diminished<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q34) The number of compressions or rarefactions per unit time gives \u2013 (A) Frequency (B) Time period (C) Amplitude (D) Pitch<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q35) In which form, energy released by oxidation of carbohydrate is stored in the cells? (A) Adenosine diphosphate (B) Adenosine triphosphate (C) Fat (D) Glycogen<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q36) Ketone bodies are products of incomplete utilization of which nutrient? (A) Carbohydrate (B) Protein (C) Fat (D) Vitamin<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q37) Urea is the metabolic end product of which nutrient? (A) Fat (B) Protein (C) Carbohydrate (D) Mineral<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q38) The amount of heat resulting from the complete oxidation of unit weight of a food is called as \u2013 (A) Metabolizable energy (B) Net energy (C) Gross energy (D) Digestible energy<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q39) In the following, which is a fundamental physical quantity? (a) Force (b) Velocity (c) Electric current (d) Work<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q40) Which of the following units is the unit of work? (a) Joule (b) Newton-meter (c) Kilowatt (d) Both 1 and 2<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q41) 1 commercial unit of electrical energy is equal to ____ joules.\u00a0(a) 3.6 \u00d7 10\u2075 (b) 3.6 \u00d7 10\u2076 (c) 3.6 \u00d7 10\u2077 (d) 3.6 \u00d7 10\u2078<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q42) One pikogram is equal to \u2013 (A) 10\u207b\u2076 gram (B) 10\u207b\u2079 gram (C) 10\u207b\u00b9\u00b2 gram (D) 10\u207b\u00b9\u2075 gram<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q43) Magnetic flux has the unit of \u2013 (A) newton (B) weber (C) ampere (D) tesla<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q44) Inductor does not allow the sudden change of \u2013 (A) current (B) voltage (C) power (D) None of the above<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q45) Electric flux is proportional to \u2013 (A) potential difference between electrodes (B) resistivity of medium (C) rate of change of potential difference (D) rate of change of current<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q46) A magnifying glass is made of a combination of convex lens of power +20 dioptre and a concave lens of power \u20134 dioptre. If the distance of distinct vision of the eye is 25 cm, the magnifying power of the glass is: (A) 5 (B) 16 (C) 24 (D) 12<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q47) A neutral point in the magnetic field, due to a magnet in a laboratory on earth, is a point where: (A) The lines of force of the magnet intersect each other (B) The earth\u2019s magnetic field is zero (C) The field due to the magnet is zero (D) The fields of the magnet and the earth are equal and opposite<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q48) Range of frequencies allotted for commercial FM radio broadcast is: (A) 88 to 108 MHz (B) 80 to 108 KHz (C) 8 to 88 MHz (D) 88 to 108 GHz<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q49 A couple produces: (A) No motion (B) Only translational motion (C) Only rotational motion (D) Both translational and rotational motion<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q50) If the ratio of densities of two substances is 5:6 and that of the specific heat is 3:5, then the ratio between heat capacities per unit volume is: (A) 1 : 1 (B) 2 : 1 (C) 1 : 2 (D) 1 : 3<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q51) The distance of a geostationary satellite from the centre of earth is approximately (Radius of earth R = 6400 km): (A) 15 R (B) 10 R (C) 7 R (D) 5 R<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q52) Two water droplets merge with each other to form a larger droplet. In this process: (A) Energy is liberated (B) Energy is absorbed (C) Energy is neither liberated nor absorbed (D) Some mass is converted into energy<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q53) The work done by the motor per unit time is called __________. (A) power (B) energy (C) acceleration (D) momentum<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q54) What percentage of solar energy is captured by green plants in terrestrial ecosystems? (A) 10 percent (B) 2.5 percent (C) 100 percent (D) 1 percent<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q55) Which of the following elements is extracted by using electrolytic reduction? (A) Zn (B) Fe (C) Pb (D) Na<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q56) The formula unit mass of CaCl\u2082 is: (A) 115 u (B) 114 u (C) 111 u (D) 110 u<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q57) Which of the following hormones stimulates the growth of all organs? (A) Adrenaline (B) Glucagon (C) Insulin (D) Growth hormone<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q58) The work done per unit volume in stretching the wire is equal to: (A) Stress \u00d7 Strain (B) \u00bd Stress \u00d7 Strain (C) Stress \/ Strain (D) Strain \/ Stress<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q59) Peptidoglycon (mucopeptide) is found in: (A) Cell wall of Gram +ve bacteria and Cyanobacteria (B) Cell wall of Gram +ve and -ve bacteria (C) Cell membrane of Gram -ve bacteria (D) Cell membrane of Cyanobacteria<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q60) Presence of urea in the blood is called: (A) Uraemia (B) Haematuria (C) Diurea (D) Anuria<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q61) In power systems, short-circuit current can be limited by using: (A) Reactors (B) Fuse (C) Isolators (D) Oil circuit breaker<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q62) The correct formula for electric power is: (A) P = V\u00b7I\u00b7T (B) P = V\u00b7T (C) P = V\u00b7I (D) P = V\/I<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q63) The dimension equivalent to joule is: (A) M\u207b\u00b9 L\u00b2 T (B) ML\u207b\u00b9 T\u207b\u00b9 (C) ML\u00b2 T\u207b\u00b2 (D) ML\u00b2 T\u207b\u00b9<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q64) Which scientist has given laws of Electrolysis? (A) Kelvin (B) Dalton (C) Archimedes (D) M. Faraday<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q65) Identify the correct statement from among the following: (A) Work and kinetic energy do not have the same unit (B) Work = Energy \u00d7 Power (C) Work is equal to power per unit time (D) Work and potential energy have the same unit<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q66) Which of the pairs of quantities can be expressed using the same unit? (A) Power and momentum (B) Impulse and potential energy (C) Acceleration and weight (D) Work and kinetic energy<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q67) A concave lens has a focal length of 30 cm. At what distance should the object be placed from the lens so that it forms an image at 20 cm from the lens? (A) 60 cm (B) 30 cm (C) 20 cm (D) 15 cm<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q68) Which of the following is not occurred during photosynthesis? (A) Absorption of light by green plants (B) Splitting of water molecules (C) Reduction of carbon dioxide (D) Utilization of oxygen<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q69) ________ on thermal decomposition produces CaO and carbon dioxide. (A) Lime (B) Slaked lime (C) Limestone (D) Lime water<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q70) Formula of sodium zincate is: (A) Na\u2082Zn\u2082O\u2082 (B) Na\u2082ZnO\u2082 (C) Na\u2082ZnO (D) Na\u2082ZnO\u2082<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q71) The change in focal length of an eye lens is caused by the action of the: (A) Pupil (B) Retina (C) Ciliary muscles (D) Iris<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q72) Which of the following organisms obtain their food through heterotrophic mode of nutrition? (A) Sugarcane plant (B) Cuscuta plant (C) Mango plant (D) Diatoms<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q73) All metal hydrogen carbonates react with acids to give ______ gas. (A) CO\u2082 (B) O\u2082 (C) H\u2082 (D) Cl\u2082<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q74) When pH of rain water is less than ________, it is called acid rain. (A) 7.4 (B) 7.2 (C) 5.6 (D) 6.5<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q75) A current of 0.25 A is drawn by a filament of an electric bulb for 5 minutes. The amount of electric charge that flows through the circuit is: (A) 25 C (B) 50 C (C) 75 C (D) 100 C<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q76) This is called energy currency of the cell: (A) Pyruvate (B) Ethanol (C) ATP (D) Glucose<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q78) Tooth enamel, made up of ______, is the hardest substance in the body. (A) Calcium carbonate (B) Calcium phosphate (C) Calcium oxide (D) Calcium hydrogen carbonate<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q79) ________ is used as an antacid. (A) NaOH (B) Mg(OH)\u2082 (C) KOH (D) LiOH<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q80) The SI unit of resistivity is: (A) Ohm (B) Ohm metre (C) Ohm per metre (D) Per ohm metre<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q81) In which unit is the electric charge measured? (A) Ampere (B) Volt (C) Coulomb (D) Ohm<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q82) If resistance is doubled and voltage remains constant, what happens to the current? (A) It doubles (B) It becomes half (C) It remains the same (D) It becomes zero<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q83) What is used to vary the resistance in an electric circuit? (A) Ammeter (B) Voltmeter (C) Resistor (D) Rheostat<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q84) When the length of a wire is doubled, what happens to its resistance? (A) It becomes half (B) It becomes double (C) It remains the same (D) It becomes zero<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q85) Which of the following materials has the lowest resistivity? (A) Nichrome (B) Copper (C) Iron (D) Aluminium<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q86) What is the SI unit of resistivity? (A) Ohm (B) Ohm\/m (C) Ohm\u00b7m (D) Volt\u00b7meter<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q87) Which of the following is a poor conductor? (A) Copper (B) Aluminium (C) Iron (D) Nichrome<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q88) If a wire of 1 m length and 0.3 mm diameter has a resistance of 26 \u03a9, what is its resistivity? (A) 1.84 \u00d7 10\u207b\u2076 \u03a9m (B) 3.00 \u00d7 10\u207b\u2076 \u03a9m (C) 2.60 \u00d7 10\u207b\u2076 \u03a9m (D) 1.50 \u00d7 10\u207b\u2076 \u03a9m<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q89) if the length is halved and the cross-sectional area is doubled, the resistance becomes: (A) 2 \u03a9 (B) 1 \u03a9 (C) 4 \u03a9 (D) 8 \u03a9<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q90) In a series combination of resistors: (A) Current remains the same (B) Voltage remains the same (C) Resistance remains the same (D) Power remains the same<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q91) Which of the following best describes resistors in parallel? (A) Same current flows through each resistor (B) Voltage is divided among resistors (C) Same voltage across each resistor (D) Current is the same across each resistor<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q92) What is the total potential difference across resistors connected in series? (A) Equal to the difference across the largest resistor (B) Equal to the sum of individual potential differences (C) Equal to the difference across the smallest resistor (D) Cannot be determined<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q93) What happens to the total resistance when resistors are connected in series? (A) It becomes less than the smallest resistance (B) It remains the same as one resistor (C) It becomes the sum of all resistances (D) It becomes zero<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q94) If R\u2081 = 20\u03a9 and R\u2082 = 4\u03a9 are connected in series to a 6V battery, what is the current in the circuit? (A) 6 A (B) 1.5 A (C) 0.25 A (D) 0.5 A<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q95) In a parallel combination, what remains the same across all resistors? (A) Current (B) Resistance (C) Voltage (D) Power<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q96) What is the total current in a parallel circuit made of three resistors if the branch currents are 2.4 A, 1.2 A, and 0.4 A respectively? (A) 2 A (B) 3 A (C) 4 A (D) 1.6 A<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q97) The equivalent resistance of three resistors in parallel with values 5\u03a9, 10\u03a9, and 30\u03a9 is: (A) 3\u03a9 (B) 4\u03a9 (C) 15\u03a9 (D) 10\u03a9<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q98) In a parallel circuit, the voltage across each resistor is: (A) Zero (B) Different (C) Same (D) Double<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q99) The heat produced in a resistor when a current I flows through it for time t is given by: (A) H=IV (B) H= I V \u200b (C) H=VIt (D) H=It\/V<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q100) According to Joule&#8217;s law, the heat produced in a resistor is: (A) Inversely proportional to resistance (B) Directly proportional to square of the current (C) Inversely proportional to time (D) Independent of current<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q101) The fuse wire is made of a metal or alloy with: (A) Very high melting point (B) Very low melting point (C) High conductivity only (D) High resistance only<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q102) A 220 V generator is connected to a bulb that draws 0.5 A current. What is the power consumed? (A) 110 W (B) 220 W (C) 55 W (D) 330 W<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q103) A piece of wire of resistance \ud835\udc45 R is cut into five equal parts and connected in parallel. If the equivalent resistance is R\u2032 , the ratio R\/R \u2032 is: (A) 1\/25 (B) 1\/5 (C) 5 (D) 25<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q104) Which of the following terms does not represent electric power in a circuit? (A) FR (B) IR\u00b2 (C) VI (D) V\u00b2\/R<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q105) An electric bulb is rated 220 V and 100 W. When operated on 110 V, the power consumed will be: (A) 100 W (B) 75 W (C) 50 W (D) 25 W<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q106) The ratio of heat produced in series and parallel combinations of two identical wires is: (A) 1:2 (B) 2:1 (C) 1:4 (D) 4:1<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q107) Who discovered the magnetic effect of electric current? (A) Isaac Newton (B) Hans Christian Oersted (C) Michael Faraday (D) James Clerk Maxwell<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q108) What is the direction of magnetic field lines outside a bar magnet? (A) From south to north (B) From north to south (C) Circular around the magnet (D) From the center outward<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q109) Which rule helps determine the direction of force on a current-carrying conductor in a magnetic field? (A) Right-hand rule (B) Ampere\u2019s rule (C) Fleming\u2019s left-hand rule (D) Maxwell\u2019s rule<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q110) At the time of short circuit, the current in the circuit (A) reduces substantially (B) does not change (C) increases heavily (D) varies continuously<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q111) Motion is said to be uniform when: (A) Object moves in a circle (B) Equal distance is covered in equal intervals of time (C) Speed increases constantly (D) There is no movement<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q112) Which of the following quantities requires direction for complete description? (A) Speed (B) Distance (C) Displacement (D) Time<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q113) Which of the following is an example of accelerated motion? (A) Earth revolving around the Sun (B) A stone falling freely (C) A car stopping at a signal (D) All of the above<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q114) Which physical quantity is represented by the area under a velocity-time graph? (A) Speed (B) Distance (C) Displacement (D) Time<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q115) What is the nature of a velocity-time graph for an object with uniform velocity? (A) Curved line (B) Sloped line (C) Horizontal straight line (D) Vertical line<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q116) What is the acceleration of a car that speeds up from 18 km\/h to 36 km\/h in 5 seconds? (A) 2 m\/s\u00b2 (B) 1 m\/s\u00b2 (C) 5 m\/s\u00b2 (D) 10 m\/s\u00b2<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q117) How far will a car move before stopping if brakes are applied, producing a deceleration of 6 m\/s\u00b2 over 2 seconds? (A) 6 m (B) 10 m (C) 12 m (D) 18 m<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q118) What type of motion does an object exhibit when it moves in a circular path with constant speed? (A) Uniform motion (B) Linear motion (C) Accelerated motion (D) Stationary motion<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q119) What is the tendency of objects to remain in their state of motion called? (A) Momentum (B) Friction (C) Inertia (D) Force<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q120) What is the momentum of an object of mass <em data-start=\"1546\" data-end=\"1549\">m<\/em>, moving with velocity <em data-start=\"1572\" data-end=\"1575\">v<\/em>? (A) mv\u00b2 (B) mu\u00b2 (C) \u00bd mv\u00b2 (D) mv<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q121) SI unit of momentum is: (A) kg\u00b7m\/s (B) kg\u00b7m\/s\u00b2 (C) N\u00b7s (D) m\/s<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q122) What happens to gravitational force if the distance between two objects is doubled? (A) It becomes four times (B) It becomes half (C) It becomes one-fourth (D) It remains the same<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q123) <strong data-start=\"1516\" data-end=\"1581\">What is the value of acceleration due to gravity on Earth? <\/strong>(A) 8.9 m\/s\u00b2 (B) 10.8 m\/s\u00b2 (C) 9.8 m\/s\u00b2 (D) 6.7 m\/s\u00b2<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q124) What is the unit of weight in the SI system ? (A) Kilogram (B) Meter (C) Newton (D) Joule<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q125) What is the weight of a 10 kg object on Earth and Moon ? (A) 98 N and 1.67 N (B) 10 N and 6 N (C) 9.8 N ad 60 N (D) 100 N and 0.67 N<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q126) What is thrust? (A) Force acting parallel to a surface (B) Force acting perpendicular to a surface (C) Weight of an object (D) Pressure applied by a fluid<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q127) When standing on sand, you sink deeper than lying down because: (A) Pressure is lower when standing (B) Thrust is higher while lying (C) Area is smaller when standing, increasing pressure (D) Sand is denser while lying<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q128) Archimedes\u2019 principle is related to: (A) Law of motion (B) Law of inertia (C) Buoyant force (D) Newton\u2019s law of gravity<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q129) What happens to the reading on the spring balance when a stone is immersed in water? (A) It increases (B) It decreases (C) It remains the same (D) It first increases then decreases<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q130) What is the relationship between radius of curvature (R) and focal length (f)? (A) R=f (B) R=4f (C) R=f\/2 (D) R=2f<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q131) Where is the image formed when an object is placed at infinity in front of a concave mirror? (A) At C (B) At F (C) At infinity (D) Between P and F<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q132) What is the nature of the image when the object is placed between pole and focus in a concave mirror? (A) Real and inverted (B) Virtual and erect (C) Real and erect (D) Virtual and inverted<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q133) If the radius of curvature of a mirror is 20 cm, what is its focal length? (A) 10 cm (B) 20 cm (C) 5 cm (D) 40 cm<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q134) What kind of image is formed by a convex mirror? (A) Real and inverted (B) Virtual and erect (C) Real and erect (D) Virtual and inverted<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q135) A positive magnification value indicates that the image is: (A) Real and inverted (B) Virtual and erect (C) Diminished (D) Behind the mirror<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q136) In which situation do letters appear raised? (A) When seen under a transparent glass slab (B) When submerged in water (C) When seen in a mirror (D) When seen through a lens<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q137) In the refraction experiment with a glass slab, the emergent ray: (A) Is bent in a different direction (B) Is parallel to the incident ray (C) Disappears (D) Travels straight without any change<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q138) According to Snell\u2019s law, the ratio (sin \u2061\ud835\udc56 \/sin \ud835\udc5f) \u200b is: (A) Always greater than 1 (B) Always less than 1 (C) Constant (D) Zero<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q139) The refractive index of a medium depends on: (A) Colour of the object (B) Speed of sound in the medium (C) Speed of light in the medium (D) Density of molecules<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q140) Which of the following has the highest optical density? (A) Ice (B) Sapphire (C) Crown glass (D) Water<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q141) In which medium does light travel the fastest? (A) Diamond (B) Water (C) Air (D) Glass<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q142) What happens when parallel rays fall on a convex lens? (A) They diverge after refraction (B) They pass undeviated (C) They converge at the principal focus (D) They form a virtual image<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q143) The distance between the lens and its principal focus is called: (A) Radius of curvature (B) Aperture (C) Optical length (D) Focal length<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q144) A concave lens always forms: (A) Real and inverted images (B) Virtual and erect images (C) Same-sized images (D) Enlarged images<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q145) When an object is placed between focus and optical center of a convex lens, the image formed is: (A) Real and inverted (B) Same size (C) Virtual, erect, enlarged (D) No image formed<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q146) A ray of light passing through the optical centre of a lens will: (A) Bend toward the normal (B) Emerge undeviated (C) Reflect back (D) Get dispersed<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q147) For a concave lens, the focal length is: (A) Always zero (B) Positive (C) Negative (D) Sometimes positive<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q148) The image formed by a concave lens is: (A) Real and inverted (B) Virtual and erect (C) Enlarged and real (D) On the opposite side of the object<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q149) Magnification is defined as: (A) Object distance \/ Image distance (B) Height of object \/ Height of image (C) Height of image \/ Height of object (D) Image distance \u00d7 Object distance<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q150) The image formed by a concave mirror is virtual, erect, and larger than the object. Where is the object placed? (A) Between the principal focus and the centre of curvature (B) At the centre of curvature (C) Beyond the centre of curvature (D) Between the pole of the mirror and its principal focus<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q151) Where should an object be placed in front of a convex lens to get a real image of the same size? (A) At the principal focus (B) At twice the focal length (C) At infinity (D) Between the optical centre and principal focus<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q152) A spherical mirror and a thin spherical lens each have focal length of \u201315 cm. What are they likely to be? (A) Both concave (B) Both convex (C) Mirror is concave, lens is convex (D) Mirror is convex, lens is concave<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q153) From a mirror, your image always appears erect. The mirror is likely: (A) Only plane (B) Only concave (C) Only convex (D) Either plane or convex<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q154) Which lens is best for reading small letters in a dictionary? (A) Convex lens of focal length 50 cm (B) Concave lens of focal length 50 cm (C) Convex lens of focal length 5 cm (D) Concave lens of focal length 5 cm<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q155) Which part of the eye controls the amount of light entering it? (A) Retina (B) Cornea (C) Iris (D) Optic nerve<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q156) What kind of lens is used to correct myopia? (A) Convex lens (B) Concave lens (C) Cylindrical lens (D) Bifocal lens<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q157) Which of the following is NOT a refractive defect of vision? (A) Myopia (B) Hypermetropia (C) Astigmatism (D) Cataract<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q158) Presbyopia occurs due to: (A) Cloudy lens (B) Elongation of eyeball (C) Weakening of ciliary muscles and loss of flexibility (D) Excessive curvature of the cornea<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q159) What is the phenomenon of splitting of white light into seven colors called? (A) Refraction (B) Reflection (C) Dispersion (D) Scattering<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q160) Why does the sky appear blue? (A) Due to reflection of sunlight (B) Due to dispersion (C) Due to scattering of blue light (D) Due to refraction<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q161) Which color bends the most while passing through a prism? (A) Red (B) Violet (C) Green (D) Yellow<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q162) The twinkling of stars is due to: (A) Reflection (B) Refraction through the Earth\u2019s atmosphere (C) Dispersion of light (D) Scattering of light<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q163) What causes the red color of the Sun at sunrise or sunset? (A) Maximum scattering of red light (B) Minimum scattering of red light (C) Total internal reflection (D) Dispersion of light<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q164) Which of the following is a longitudinal wave? (A) Light (B) Sound (C) Water ripple (D) Radio wave<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q165) Rarefaction in a sound wave is a region of: (A) High pressure (B) Low pressure (C) Zero pressure (D) No particles<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q166) What is the SI unit of frequency? (A) Newton (B) Pascal (C) Hertz (D) Joule<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q167) Which part of the sound wave is related to loudness? (A) Frequency (B) Amplitude (C) Wavelength (D) Speed<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q168) If the frequency of a wave increases, what happens to its pitch? (A) Decreases (B) Increases (C) Remains same (D) Becomes zero<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q169) Which wave property determines the speed of sound in a medium? (A) Amplitude (B) Frequency (C) Medium properties (D) Wavelength<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q170) In which medium does sound travel the fastest? (A) Air (B) Water (C) Iron (D) Hydrogen<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q171) What is the minimum time interval between the original sound and the echo? (A) 0.01 s (B) 0.1 s (C) 1 s (D) 10 s<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q172) What is reverberation? (A) Original sound (B) Echo of sound (C) Prolonged sound due to reflection (D) Absorbed sound<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q173) Which instrument uses multiple reflections of sound to hear heartbeat? (A) Megaphone (B) Horn (C) Stethoscope (D) Trumpet<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q174) Which frequency range is ultrasonic? (A) Below 20 Hz (B) 20 Hz \u2013 20000 Hz (C) Above 20000 Hz (D) 10 Hz \u2013 1000 Hz<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q175) What type of waves are used to clean electronic components? (A) Light waves (B) Radio waves (C) Ultrasonic waves (D) Infrasonic waves<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q176) Which device helps detect internal cracks in metal blocks? (A) X-ray (B) Ultrasonic detector (C) Stethoscope (D) Thermometer<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q177) What is the use of echocardiography? (A) To measure blood pressure (B) To hear heartbeat (C) To image the heart (D) To measure oxygen level<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q179) What is the frequency range of ultrasound? (A) Below 20 Hz (B) 20 Hz \u2013 20000 Hz (C) Above 20000 Hz (D) 10 Hz \u2013 1000 Hz<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q180) Which organ is not commonly imaged using ultrasound? (A) Liver (B) Uterus (C) Kidney (D) Bones<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q181) Which instrument is used to detect flaws in metal blocks? (A) Thermometer (B) X-ray (C) Ultrasonic detector (D) Microphone<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q182) What type of wave is a sound wave? (A) Transverse (B) Circular (C) Longitudinal (D) Electromagnetic<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q183) Diffusion increases with: (A) Decrease in temperature (B) Constant temperature (C) Increase in temperature (D) Decrease in particle size only<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q184) The force of attraction between particles is: (A) Same in all substances (B) Non-existent (C) Varies from substance to substance (D) Only found in gases<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q185) What is the latent heat of fusion? (A) Heat absorbed during vaporization (B) Heat absorbed to increase temperature (C) Heat absorbed to convert solid to liquid (D) Heat released during condensation<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q186) What is the melting point of ice? (A) 0\u00b0C (B) 273 K (C) 273.15 K (D) All of the above<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q187) Which of the following processes does NOT involve a liquid state? (A) Melting (B) Boiling (C) Sublimation (D) Condensation<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q188) Which factor does NOT increase the rate of evaporation? (A) Higher temperature (B) Higher surface area (C) More humidity (D) More wind speed<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q189) Which of the following is a homogeneous mixture? (A) Oil and water (B) Salt dissolved in water (C) Soil (D) Iron and sulphur mixture<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q190) What kind of solution is lemonade? (A) Heterogeneous mixture (B) Solid-solid mixture (C) Homogeneous solution (D) Gas in gas mixture<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q191) What does a saturated solution mean? (A) No solute is present (B) Water is the solute (C) No more solute can dissolve (D) Solution is diluted<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q192) Which of the following is NOT a property of a suspension? (A) Particles are visible to the naked eye (B) It is a heterogeneous mixture (C) Particles cannot be separated by filtration (D) Solute particles scatter light<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q193) Which mixture shows the Tyndall effect? (A) Sugar solution (B) Salt solution (C) Milk (D) Alcohol-water solution<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q194) What kind of change is rusting of iron? (A) Physical change (B) Reversible change (C) Chemical change (D) Temporary change<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q195) Colloids are stable because: (A) Particles are heavy (B) They dissolve completely (C) Particles do not settle down (D) They can be filtered easily<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q196) Which one is an example of physical change? (A) Burning paper (B) Boiling of water (C) Rusting of iron (D) Explosion of firecrackers<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q197) Which of the following is a compound? (A) Iron (B) Water (C) Oxygen (D) Copper<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q198) Which is a characteristic of a mixture? (A) Fixed composition (B) New properties formed (C) Components can be separated physically (D) Uniform properties throughout<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q199) Which of the following is a homogeneous mixture? (A) Oil in water (B) Sand and salt (C) Salt in water (D) Iron filings and sulphur<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q200) What gas is released when heated iron filings with sulphur? (A) Oxygen (B) Hydrogen (C) Nitrogen (D) Hydrogen sulphide<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q201) Which of these will show the Tyndall effect? (A) Salt solution (B) Copper sulphate solution (C) Milk (D) Sugar solution<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q202) Which solution has the highest solubility at 293 K? (A) Potassium nitrate (B) Sodium chloride (C) Ammonium chloride (D) Potassium chloride<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q203) Which of the following is a homogeneous mixture? (A) Soil (B) Vinegar (C) Wood (D) Air and soil<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q204) Who proposed the concept of &#8216;Parmanu&#8217; in ancient India? (A) Democritus (B) Leucippus (C) Kanad (D) Dalton<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q205) The Law of Conservation of Mass was proposed by: (A) Proust (B) Dalton (C) Rutherford (D) Lavoisier<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q206) According to Dalton\u2019s Atomic Theory, atoms of the same element are: (A) Different in mass (B) Identical in all respects (C) Non-reactive (D) Large in size<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q207) In a compound, the ratio of mass of hydrogen to oxygen is always: (A) 2:1 (B) 1:2 (C) 1:8 (D) 8:1<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q208) Atomic size is measured in: (A) Millimeters (B) Meters (C) Centimeters (D) Nanometers<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q209) Which unit is used to measure atomic mass? (A) Gram (B) Kilogram (C) Unified mass unit (u) (D) Mole<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q210) The standard atom used for defining atomic mass is: (A) Oxygen-16 (B) Carbon-12 (C) Hydrogen-1 (D) Helium-4<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q211) What is the atomic mass of Oxygen? (A) 12 (B) 1 (C) 16 (D) 23<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q212) The atomicity of sulphur is: (A) 1 (B) 2 (C) 4 (D) 8<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q213) A positively charged ion is called: (A) Anion (B) Proton (C) Cation (D) Molecule<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q214) What is valency? (A) Mass of an element (B) Size of an atom (C) Combining capacity of an element (D) Density of an element<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q215) Which of the following is a correct formula using the criss-cross method? (A) CaCl (B) MgCl\u2082 (C) AlO\u2082 (D) H\u2082Cl<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q216) Which ion has a charge of 2+? (A) Na\u207a (B) Al\u00b3\u207a (C) Mg\u00b2\u207a (D) Cl\u207b<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q217) Which of the following is a polyatomic ion? (A) Cl\u207b (B) OH\u207b (C) O\u00b2\u207b (D) Na\u207a<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q218) What is the molecular mass of HNO\u2083? (A) 63 u (B) 16 u (C) 1 u (D) 18 u<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q219) Which law states that the total mass of reactants and products remains unchanged in a reaction? (A) Law of Definite Proportions (B) Law of Mass Conservation (C) Law of Conservation of Mass (D) Law of Atomic Structure<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q220) Which of the following is a polyatomic ion? (A) Na\u207a (B) Cl\u207b (C) SO\u2084\u00b2\u207b (D) H\u207a<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q221) A molecule is: (A) An atom with charge (B) The largest particle of a compound (C) A cluster of different ions (D) The smallest particle with independent existence<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q222) What is the valency of phosphate ion (PO\u2084\u00b3\u207b)? (A) 2\u207b (B) 1\u207b (C) 3\u207b (D) 4\u207b<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q223) What did Rutherford\u2019s gold foil experiment prove? (A) Atoms are indivisible (B) Electrons are positively charged (C) Atom has a small, dense, positively charged nucleus (D) Electrons are embedded in a positive sphere<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q224) According to Bohr&#8217;s model, electrons: (A) Can move randomly in any path (B) Radiate energy in fixed orbits (C) Move in discrete orbits without energy loss (D) Stay outside the atom<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q225) What is the maximum number of electrons in the M shell? (A) 8 (B) 18 (C) 32 (D) 2<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q226) Which particle was discovered by J. Chadwick? (A) Proton (B) Electron (C) Neutron (D) Positron<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q227) Which of the following has a valency of zero? (A) Hydrogen (B) Fluorine (C) Neon (D) Carbon<\/p>\n<p data-start=\"1737\" data-end=\"1923\">Q228) The maximum number of electrons in a shell is given by: (A) n\u00b2 (B) 2n\u00b2 (C) 4n (D) n\/2<\/p>\n<p>Q229) The atomic number of an element is determined by: (A) Number of neutrons (B) Number of protons (C) Number of electrons in outermost shell (D) Sum of electrons and neutrons<\/p>\n<p>Q230) Mass number is: (A) Number of neutrons only (B) Number of protons only (C) Number of protons + neutrons (D) Number of electrons + protons<\/p>\n<p>Q231) Which of the following is an example of isobars? (A) \u00b9H and \u00b2H (B) \u2076C\u00b9\u00b2 and \u2076C\u00b9\u2074 (C) \u00b2\u2070Ca\u2074\u2070 and \u00b9\u2078Ar\u2074\u2070 (D) \u2081\u2087Cl\u00b3\u2075 and \u2081\u2087Cl\u00b3\u2077<\/p>\n<p>Q232) The average atomic mass of chlorine is: (A) 35 u (B) 36 u (C) 35.5 u (D) 34.5 u<\/p>\n<p>Q233) An isotope of iodine is used in the treatment of: (A) Cancer (B) Goitre (C) Fever (D) Asthma<\/p>\n<p>Q234) Rutherford\u2019s alpha-particle scattering experiment was responsible for the discovery of (A) Atomic Nucleus (B) Electron (C) Proton (D) Neutron<\/p>\n<p>Q235) Isotopes of an element have (A) the same physical properties (B) different chemical properties (C) different number of neutrons (D) different atomic numbers<\/p>\n<p>Q236) Number of valence electrons in Cl\u207b ion are: (A) 16 (B) 8 (C) 17 (D) 18<\/p>\n<p>Q237) Which one of the following is a correct electronic configuration of sodium? (A) 2,8 (B) 8,2,1 (C) 2,1,8 (D) 2,8,1<\/p>\n<p>Q238) Which of the following metals is liquid at room temperature? (A) Mercury (B) Gallium (C) Iron (D) Sodium<\/p>\n<p>Q239) Which metal is the best conductor of heat? (A) Iron (B) Aluminium (C) Silver (D) Lead<\/p>\n<p>Q240) The metals that can be cut with a knife are: (A) Iron and copper (B) Sodium and potassium (C) Aluminium and zinc (D) Silver and gold<\/p>\n<p>Q241) Which of the following is a non-metal but lustrous? (A) Carbon (B) Sulphur (C) Iodine (D) Phosphorus<\/p>\n<p>Q242) Which of these properties is generally not shown by non-metals? (A) Poor conduction of heat (B) Malleability (C) Brittleness (D) Dull appearance<\/p>\n<p>Q243) Which metal reacts violently with cold water? (A) Zinc (B) Copper (C) Sodium (D) Iron<\/p>\n<p>Q244) Which oxide is amphoteric in nature? (A) Copper oxide (B) Aluminium oxide (C) Sodium oxide (D) Calcium oxide<\/p>\n<p>Q245) Which gas is evolved when metals react with dilute hydrochloric acid? (A) Oxygen (B) Hydrogen (C) Nitrogen (D) Carbon dioxide<\/p>\n<p>Q246) Which of the following metals does not react with cold or hot water but reacts with steam? (A) Copper (B) Lead (C) Iron (D) Potassium<\/p>\n<p>Q247) What is the reactivity order of metals with dilute acids? (A) Mg &gt; Zn &gt; Al &gt; Fe (B) Cu &gt; Fe &gt; Zn &gt; Al (C) Mg &gt; Al &gt; Zn &gt; Fe (D) Zn &gt; Mg &gt; Fe &gt; Al<\/p>\n<p>Q248) Which of the following metals is most reactive? (A) Iron (B) Copper (C) Potassium (D) Gold<\/p>\n<p>Q249) What type of bond is formed between sodium and chlorine? (A) Covalent bond (B) Metallic bond (C) Ionic bond (D) Hydrogen bond<\/p>\n<p>Q250) In a displacement reaction, which metal can displace copper from copper sulphate solution? (A) Silver (B) Gold (C) Iron (D) Mercury<\/p>\n<p>Q251) What is the charge on a chloride ion after gaining an electron? (A) +1 (B) -1 (C) 0 (D) -2<\/p>\n<p>Q252) Which of the following compounds has the highest melting point? (A) NaCl (B) LiCl (C) CaO (D) MgCl\u2082<\/p>\n<p>Q253) What is the physical nature of ionic compounds? (A) Soft and ductile (B) Hard and brittle (C) Malleable (D) Shiny and smooth<\/p>\n<p>Q254) Which method is used for extracting highly reactive metals? (A) Roasting (B) Calcination (C) Electrolysis (D) Distillation<\/p>\n<p>Q255) What is the purpose of calcination in metal extraction? (A) To convert sulphides into oxides (B) To reduce oxides to metals (C) To convert carbonates into oxides (D) To purify metals<\/p>\n<p>Q256) What is formed when iron is exposed to moist air for a long time? (A) Green layer (B) Silver tarnish (C) Rust (D) Basic copper carbonate<\/p>\n<p>Q257) What is the role of carbon in the reduction of metal oxides? (A) Oxidizing agent (B) Reducing agent (C) Electrolyte (D) Catalyst<\/p>\n<p>Q258) An alloy is a: (A) Pure metal (B) Non-metal (C) Homogeneous mixture of metals (D) Mixture of gases<\/p>\n<p>Q259) Stainless steel is made by mixing iron with: (A) Copper and Tin (B) Carbon and Zinc (C) Nickel and Chromium (D) Silver and Gold<\/p>\n<p>Q260) Brass is an alloy of: (A) Copper and Tin (B) Copper and Zinc (C) Iron and Zinc (D) Zinc and Tin<\/p>\n<p>Q261) Amalgam is an alloy that contains: (A) Copper (B) Mercury (C) Silver (D) Lead<\/p>\n<p>Q262) Which of the following is NOT a characteristic of a chemical reaction? (A) Change in state (B) Change in shape (C) Change in temperature (D) Evolution of gas<\/p>\n<p>Q263) When magnesium ribbon burns, it forms: (A) Magnesium chloride (B) Magnesium oxide (C) Magnesium nitrate (D) Magnesium hydroxide<\/p>\n<p>Q264) What is observed when zinc reacts with dilute sulphuric acid? (A) A white precipitate forms (B) Hydrogen gas is released (C) Temperature decreases (D) No visible change<\/p>\n<p>Q265) The correct balanced chemical equation for Zn + H\u2082SO\u2084 is: (A) Zn + H\u2082SO\u2084 \u2192 ZnSO\u2084 + H\u2082 (B) Zn + H\u2082SO\u2084 \u2192 ZnO + H\u2082 (C) Zn + H\u2082O \u2192 Zn(OH)\u2082 + H\u2082 (D) Zn + O\u2082 \u2192 ZnO<\/p>\n<p>Q266) What is the final balanced equation for the reaction between iron and water? (A) 2Fe + 3H\u2082O \u2192 Fe\u2082O\u2083 + 3H\u2082 (B) 3Fe + 4H\u2082O \u2192 Fe\u2083O\u2084 + 4H\u2082 (C) Fe + H\u2082O \u2192 FeO + H\u2082 (D) 4Fe + 3H\u2082O \u2192 2Fe\u2082O\u2083 + 3H\u2082<\/p>\n<p>Q267) What type of reaction is represented by CaO + H\u2082O \u2192 Ca(OH)\u2082? (A) Displacement (B) Combination (C) Decomposition (D) Double displacement<\/p>\n<p>Q268) Which reaction is an example of thermal decomposition? (A) C + O\u2082 \u2192 CO\u2082 (B) CaCO\u2083 \u2192 CaO + CO\u2082 (C) H\u2082 + Cl\u2082 \u2192 HCl (D) Zn + HCl \u2192 ZnCl\u2082 + H\u2082<\/p>\n<p>Q269) In the reaction 2FeSO\u2084 \u2192 Fe\u2082O\u2083 + SO\u2082 + SO\u2083, the green crystals turn into: (A) Blue powder (B) Brown residue (C) White foam (D) Transparent liquid<\/p>\n<p>Q270) Which gas is collected at the cathode during electrolysis of water? (A) Oxygen (B) Hydrogen (C) Carbon dioxide (D) Nitrogen<\/p>\n<p>Q271) What is the color change observed when silver chloride is kept in sunlight? (A) White to yellow (B) White to grey (C) Grey to white (D) Blue to green<\/p>\n<p>Q272) What kind of reaction is observed when iron is dipped in copper sulphate solution? (A) Combination (B) Double displacement (C) Displacement (D) Decomposition<\/p>\n<p>Q273) Which of the following is a redox reaction? (A) CuO + H\u2082 \u2192 Cu + H\u2082O (B) AgCl \u2192 Ag + Cl\u2082 (C) Na\u2082SO\u2084 + BaCl\u2082 \u2192 BaSO\u2084 + NaCl (D) Fe + CuSO\u2084 \u2192 FeSO\u2084 + Cu<\/p>\n<p>Q274) What is rancidity? (A) Boiling of oil (B) Freezing of fat (C) Oxidation of fat and oil causing bad smell and taste (D) Heating of butter<\/p>\n<p>Q275) What is added to food to prevent rancidity? (A) Salt (B) Antioxidants (C) Preservatives (D) Sugar<\/p>\n<p>Q276) Which gas is used in food packets to prevent oxidation? (A) Oxygen (B) Carbon dioxide (C) Hydrogen (D) Nitrogen<\/p>\n<p>Q277) Which of the following is a natural indicator? (A) Phenolphthalein (B) Methyl orange (C) Turmeric (D) Sodium hydroxide<\/p>\n<p>Q278) What happens when zinc reacts with dilute sulphuric acid? (A) Hydrogen gas is released (B) CO\u2082 is formed (C) A red precipitate forms (D) No reaction<\/p>\n<p>Q279) What is the colour of litmus in a neutral solution? (A) Red (B) Blue (C) Purple (D) Yellow<\/p>\n<p>Q280) Which of the following can act as an olfactory indicator? (A) Vinegar (B) Vanilla essence (C) Ammonia (D) Hydrochloric acid<\/p>\n<p>Q281) What is formed when metal carbonates react with acids? (A) Oxygen (B) Hydrogen (C) Nitrogen (D) Carbon dioxide<\/p>\n<p>Q282) Which of the following ions is responsible for acidic nature in aqueous solution? (A) OH\u207b (B) H\u207a (C) Na\u207a (D) Cl\u207b<\/p>\n<p>Q283) What is the correct product of a neutralization reaction? (A) Acid + Water (B) Base + Hydrogen (C) Salt + Water (D) Gas + Base<\/p>\n<p>Q284) Which of these reactions is exothermic in nature? (A) Acid reacting with base (B) Acid or base mixed with water (C) Salt reacting with water (D) Base reacting with metal<\/p>\n<p>Q285) What happens when copper oxide reacts with hydrochloric acid? (A) Water is formed only (B) Acid remains unchanged (C) A blue-green solution forms (D) Hydrogen gas is evolved<\/p>\n<p>Q286) Which substance has the lowest pH among the following? (A) Milk of magnesia (B) Lemon juice (C) Tap water (D) Baking soda<\/p>\n<p>Q287) What is used to test the pH of soil? (A) Litmus paper (B) pH meter (C) Universal indicator (D) Thermometer<\/p>\n<p>Q288) Which of the following is a mild base used as an antacid? (A) Sodium hydroxide (B) Potassium chloride (C) Magnesium hydroxide (D) Calcium hydroxide<\/p>\n<p>Q289) Which acid is present in a nettle sting? (A) Citric acid (B) Oxalic acid (C) Methanoic acid (D) Acetic acid<\/p>\n<hr \/>\n<p>For more Please visit Our YouTube Channel <span style=\"color: #ff0000;\"><strong>@ODEAcademy \u25b6\ufe0f<\/strong><\/span><\/p>\n<hr \/>\n<p><span style=\"color: #ff0000;\"><strong>Related Links<\/strong><\/span><\/p>\n<ul>\n<li><a href=\"https:\/\/thequickknowledge.com\/exam\/general-science-mcqs\/\">General Science MCQs for Competitive Exams<\/a> \ud83d\udd17<\/li>\n<li><a href=\"https:\/\/thequickknowledge.com\/exam\/general-science\/\">General Science Complete Study Material for Competitive Exams<\/a> \ud83d\udd17<\/li>\n<\/ul>\n<hr \/>\n<p><strong><a href=\"https:\/\/thequickknowledge.com\/exam\/general-science\/\">General Science<\/a>, <a href=\"https:\/\/thequickknowledge.com\/exam\/study-materials\/\">Study Materials<\/a>, <a href=\"https:\/\/thequickknowledge.com\/exam\/current-affairs\/\">Current Affairs<\/a>, <a href=\"https:\/\/thequickknowledge.com\/exam\/practice-questions\/\">Practice Questions<\/a>,\u00a0<\/strong><\/p>\n<hr \/>\n<p style=\"text-align: center;\"><strong>For More Updates ! Join ODEAcademy <a href=\"https:\/\/whatsapp.com\/channel\/0029VbB3TFEI1rcs7QmbSv2H\"><span style=\"color: #00ff00;\">WhatsApp <\/span><\/a>and <a href=\"https:\/\/t.me\/ODEAcademy\"><span style=\"color: #00ff00;\"><span style=\"color: #3366ff;\">Telegram <\/span><\/span><\/a>Channel<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>General Science Question and Answer Indian Institute of Forest Management (IIFM), Bhopal Forest Research Institute, Dehradun Wildlife Institute of India (WII), Dehradun Q) Medha Patkar is related to which movement? (A) Chipko Movement (B) Narmada Bachao Andolan (C) Naxalite Movement (D) Harm to agricultural land Q) Which of the following is the main component of [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"disabled","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[135],"tags":[139],"class_list":["post-2572","post","type-post","status-publish","format-standard","hentry","category-practice-questions","tag-general-science-questions"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/thequickknowledge.com\/exam\/wp-json\/wp\/v2\/posts\/2572","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/thequickknowledge.com\/exam\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/thequickknowledge.com\/exam\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/thequickknowledge.com\/exam\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/thequickknowledge.com\/exam\/wp-json\/wp\/v2\/comments?post=2572"}],"version-history":[{"count":63,"href":"https:\/\/thequickknowledge.com\/exam\/wp-json\/wp\/v2\/posts\/2572\/revisions"}],"predecessor-version":[{"id":3622,"href":"https:\/\/thequickknowledge.com\/exam\/wp-json\/wp\/v2\/posts\/2572\/revisions\/3622"}],"wp:attachment":[{"href":"https:\/\/thequickknowledge.com\/exam\/wp-json\/wp\/v2\/media?parent=2572"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/thequickknowledge.com\/exam\/wp-json\/wp\/v2\/categories?post=2572"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/thequickknowledge.com\/exam\/wp-json\/wp\/v2\/tags?post=2572"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}