51

Synthesis of many different substances simultaneously at a fast rate can be done means of

A

Physical chemistry

B

Green chemistry

C

Combinatorial chemistry

D

Environmental chemistry

E

 

Answer

C

Instruction

 

 

52

Enzymes are used to

Improve the performance of detergent

Make beer

Process food

Digest food

Which of the above are true

A

(iv)

B

(i), (iv)

C

(i), (iii), (iv)

D

(i), (ii), (iii), (iv)

E

 

Answer

D

Instruction

 

 

53

Biocatalysts are highly selective. This selective leads to

A

More side reaction

B

Lower yields

C

Purer products

D

More environmental waste

E

 

Answer

C

Instruction

 

 

54

The biomaterial used to replace large sections of bones is

A

Titanium

B

Alumina

C

Polyurethane

D

316L stainless steel

E

 

Answer

B

Instruction

 

 

 

55

Which of the following are true

Silicones are used in cosmetic surgery.

Carbon is used in heart valves.

Polyurethane are used for pace maker leads.

Arsenic is used to fill bone voids.

Choose the correct option.

A

(i),(ii),(iii)and(iv)

B

(i),(ii)and (iv)

C

(ii),(iii)and(iv)

D

(i),(ii)and(iii)

E

 

Answer

D

Instruction

 

 

56

Which of the following are example of Bio-mimetics?

Birds inspiring aircraft design

Seashells inspiring ceramic

Butterflies inspiring

making of artificial silk

Lizards inspiring ‘Gecko tape’

Select the correct answer using the codes given below:

A

(i)and(ii)

B

(ii)and(iv)

C

(i),(ii)and(iv)

D

(i),(iii)and(iv)

E

 

Answer

C

Instruction

 

 

 

57

Replacing the use of polyethylene in coated paper by a biopolymer can help

A

Eliminate oxygen in compost

B

Eliminate plastic scraps in compost

C

Eliminate carbon dioxide in compost

D

Eliminate water in compost

E

 

Answer

B

Instruction

 

 

58

Metal ions which act as enzyme inhibitors are

A

Hg, Cd, Pb

B

Ca, Sr, Ba

C

Na, K, Ca

D

Mg, Fe, Cu

E

 

Answer

A

Instruction

 

 

59

The outbreak of Itai-Itai disease in Japan occurred due to

A

Mercury poisoning

B

Lead poisoning

C

Cadmium poisoning

D

Arsenic poisoning

E

 

Answer

C

Instruction

 

 

60

Genetic defects were observed in babies whose mother had consumed mercury contaminated fish from Minamata Bay (Japan) in 1953. This mercury was in the form of

A

Mercuric chloride

B

Methyl mercury

C

Mercuric sulphide

D

Isoproprly mercury

E

 

Answer

B

Instruction

 

 

61

Carbon monoxide poisoning can be cured by

A

Exposing the affected person to fresh oxygen

B

Eating butter

C

Drinking lemon water

D

Consuming multivitamin tablet

E

 

Answer

A

Instruction

 

 

62

Chronic exposure of plants to Sulphur dioxide leads to chlorosis, which is

A

Blackening of buds

B

Burning of roots

C

Bleaching of green leaves

D

Retarded growth

E

 

Answer

C

Instruction

 

 

63

The biochemical chemical effects of ozone and PAN appear mostly to arise from the generation of

A

Carbocations

B

Free radicals

C

Carbanion

D

Carbenes

E

 

Answer

B

Instruction

 

 

64

Cyanide exerts its toxic action by inhibiting the production of

A

ATP

B

Hemoglobin

C

Oxygen

D

Bile acids

E

 

Answer

A

Instruction

 

 

65

The pesticide, DDT

attacks the central nervous system

accumulates in the fatty membrane surrounding nerve cells

persists in the environment

contains chlorine

Which of the above statements are true?

A

(i), (ii), (iii), (iv)

 

B

(i), (ii), (iii)

 

C

(i), (iv)

D

(i), (iii), (iv)

E

 

Answer

A

Instruction

 

 

66

Consider the following chemicals:

Vinyl chloride

Ethylene dichloride

Beta-naphthylamine

Aspirin

Which of the above is/are not carcinogenic?

A

(ii)

B

(iv)

C

All of the above

D

(i), (ii), (iii)

E

 

Answer

B

Instruction

 

 

67

Consider the air pollutants given below:

Carbon dioxide

Nitrogen dioxide

Ammonia

Sulphur dioxide

Which of the above is/are not obtained by combustion?

A

(i), (ii) and (iv)

B

(ii)only

C

(iii)only

D

(iv)only

E

 

Answer

C

Instruction

 

 

68

Forest fires are natural sources of

A

Carbon monoxide

 

B

Hydrocarbons

 

C

Hydrogen sulphide

D

Nitrogen dioxide

E

 

Answer

A

Instruction

 

 

 

 

 

69

Smog containing high levels of sulphur dioxide is called

A

Photochemical smog

B

Reducing smog

C

Oxidising smog

D

Acidic smog

E

 

Answer

B

Instruction

 

 

70

The gas accidentally released by Union Car- bide pesticide plant (Bhopal gas tragedy) in 1984 was

A

Carbon monoxide

B

Sulphur dioxide

C

Methyl isocyanate

D

Methane

E

 

Answer

C

Instruction

 

 

71

The primary releases of radioactive nuclides in the Fukushima Daiichi (Japan) nuclear disaster were those of

A

Iodine-131 & Calcium

B

Cesium-137 & Barium

C

lodine-131& Chlorine

D

lodine-131& Cesium-137

E

 

Answer

D

Instruction

 

 

72

The most polluted places in India are

A

Gwalior and Bhopal

B

Vapi and Sukinda

C

Jharkhand and Nasik

D

Surat and Rampur

E

 

Answer

B

Instruction

 

 

 

 

73

The Trade Pact with US and France will help India fight global warming with

A

Heat energy

B

Microwave energy

C

Nuclear energy

D

Electrical energy

E

 

Answer

C

Instruction

 

 

74

The Secretariat of the Convention on Biological Diversity, coordinating the International Year of Biodiversity campaign, was based in

A

Stockholm

B

Vienna

C

Montreal

D

Rotterdam

E

 

Answer

C

Instruction

 

 

75

The year declared as the International Year of Biodiversity was

A

2009

B

2006

C

2010

D

2008

E

 

Answer

B

Instruction

 

 

 

 

 

 

 

 

 

76

Match List I (Type of Toxin) with List II (Example) and select the correct answer using the code given below the lists:

List I

List II

(Type of Toxin)

(Example)

Carcinogen

Cyanide Ion

Neurotoxin

LSD

Hallucinogen

Benzo (α) Pyrene

Metabolic poison

Atropine

 

A

A B C D

4 3 2 1

B

3 4 2 1

C

4 1 3 2

D

2 4 3 1

E

 

Answer

B

Instruction

 

 

77

The nausea and stupor of drunkenness (from consumption of ethyl alcohol) are not caused by alcohol itself but by

A

Acetaldehyde

B

Acetic acid

C

Methyl alcohol

D

Hydrochloric acid

E

 

Answer

A

Instruction

 

 

78

Substances that poison the nervous system are called

A

Nucleosides

B

Nucleoties

C

Neurotoxins

D

Nervotins

E

 

Answer

C

Instruction

 

 

 

 

79

The hallucinogenic chemical commonly known as "Grass" or "Hash" is

A

LSD

B

Marihuana

C

Mescaline

D

Methaqualone

E

 

Answer

B

Instruction

 

 

80

Which of the following are corrosive poison

Sulphuric acid

Phosgene

Sodium hydroxide

Ozone

Choose the correct option.

A

(i)and (iii)

B

(ii)and (iv)

C

(ii)

D

All of the above

E

 

Answer

D

Instruction

 

 

 

81

Smokers suffer chronically from the effects of

Carbon dioxide

Nitrogen dioxide

Carbon monoxide

Sulphur dioxide

Select the correct option.

A

(i)and (iv)

B

(ii)and (iii)

C

(iii)only

D

(i)only

E

 

Answer

C

Instruction

 

 

82

Which of the poisons?

Nicotine

Cyanide ion

Arsenic

Carbon monoxide

Choose the correct answer.

A

(ii), (iii) and (iv)

B

(i), (iii) and (iv)

C

(ii) and (iii)

D

(i) and (ii)

E

 

Answer

A

Instruction

 

 

83

Which of the following is not correctly matched?

Neurotoxin Normal Contact

A

Morphine Opium

B

Caffeine Coffee

C

Nicotine Tobacco

D

Atropine Muscle relaxant

E

 

Answer

D

Instruction

 

 

84

Mutagens are chemicals that affect the

A

Hereditary pattern

B

Enzyme action

C

Nerves

D

Sense of judgement

E

 

Answer

A

Instruction

 

 

85

LSD stands for

A

Low sugar drugs

B

Lithium sodium diodes

C

Lysergic acid diethylamide

D

Low sodium dish

E

 

Answer

C

Instruction

 

 

86

The compound disulfiram (Antabuse) some- times used to treat chronic alcoholism leads to accumulation of

A

Water

B

Acetaldehyde

C

Formic Acid

D

Carbon dioxide

E

 

Answer

B

Instruction

 

 

87

The toxins which cross the placenta and harm the fetus are called

A

Mutagens

B

Carcinogens

C

Teratogens

D

Hallucinogens

E

 

Answer

C

Instruction

 

 

88

Taxol, the well-known drug against cancer, is extracted from the tree

A

Yew

B

Neem

C

Oak

D

Banyan

E

 

Answer

A

Instruction

 

 

89

Insulin controls the

A

level of urea in the blood

B

level of sugar in the blood

C

amount of calcium in the blood

D

amount of iron in the blood

E

 

Answer

B

Instruction

 

 

 

 

90

A. Enzymes catalyse chemical reactions in biological systems.

R. Enzymes are proteins.

Select the correct option.

A

Both A and R are correct

B

A is correct and R is incorrect

C

Both A and R are correct, and R is the correct explanation of A

D

Both A and R are correct, but R is not the explanation of A

E

 

Answer

D

Instruction

 

 

91

The human body contains the maximum amount of

A

Water

B

Proteins

C

Iron

D

Lipids

E

 

Answer

A

Instruction

 

 

92

Fat soluble pigments are

A

Flavonoids

B

Alkaloids

C

Lignins

D

Tannins

E

 

Answer

C

Instruction

 

 

93

The drug "hashish" is obtained from the flowers of

A

Rose

B

Hibiscus

C

Jasmine

D

Hemp

E

 

Answer

D

Instruction

 

 

 

94

The urine samples of diabetic patients contain

A

Fructose

B

Glucose

C

Sucrose

D

Starch

E

 

Answer

B

Instruction

 

 

95

Match List I with List II:

List I

 

List II

 

A. Alkaloid

 

1. Menthol

 

B. Terpenoid

 

2. Ergosterol

 

C. Steroid

 

3. β-Carotene

 

D. Carotenoid

 

4. Cocaine

 

Select the correct code.

Code

A B C D

A

4 1 2 3

B

3 1 4 2

C

2 4 1 3

D

2 1 4 3

E

 

Answer

A

Instruction

 

 

96

Carcinogenesis can be caused by

X-rays

Dyes and paints

Benzene

Soot and tar

Choose the correct answer.

A

(i)

B

(i) and (iv)

C

(i), (iii) and (iv)

D

(i), (ii), (iii) and (iv)

E

 

Answer

D

Instruction

 

 

97

Heroin can be prepared by acetylation of

A

Quinine

B

Caffeine

C

Morphine

D

Berberine

E

 

Answer

C

Instruction

 

 

98

Which of the following is not correctly matched?

A

Nicotine Antibacterial

B

Caffeine Stimulant

C

Reserpine Antihypertension agent

D

Quinine Antimalarial drug

E

 

Answer

A

Instruction

 

 

99

A. Sucrose is sweet in taste.

R. Sucrose gives glucose and fructose on hy- drolysis.

Select the correct option.

A

A is correct and R is incorrect.

B

Both A and R are incorrect.

C

Both A and R are correct and R is the correct explanation of A.

D

Both A and R are correct but R is not the explanation of A.

E

 

Answer

D

Instruction

 

 

100

Anaemic patients are deficient in

A

Iodine

B

Iron

C

Calcium

D

Potassium

E

 

Answer

B

Instruction

 

 

 

 

101

Which of the following are non-renewable energy resources?

Natural gas

Coal

Syngas

Petroleum

Select the correct answer using the codes given below:

A

(ii) and (iv)

B

(i) and (iii)

C

(i), (ii) and (iv)

D

(i), (ii) and (iii)

E

 

Answer

C

Instruction

 

 

102

Which of the following statement(s) is (are) true for greenhouse gases?

Greenhouse gases are green in colour.

 

Greenhouse gases are responsible for global warming.

 

Nitrogen oxide, carbon dioxide, and water vapour are greenhouse gases.

Select the correct option:

A

(i)

B

(iii)

C

(i) and (iii)

D

(ii) and (iii)

E

 

Answer

D

Instruction

 

 

103

Burning of coal (the worst environmental pollutant) releases large amounts of

A

Methane

B

Nitrogen oxides

C

Sulphur dioxide

D

Carbon dioxide

E

 

Answer

B

Instruction

 

 

 

 

104

Which energy resource is not used in Rale- gaon Siddhi, the home village of the social worker and activist Anna Hazare?

A

Biogas

B

Solar energy

C

Wind energy

D

Nuclear energy

E

 

Answer

D

Instruction

 

 

105

Which place in the world has the highest natural gas reserves?

A

Iran

B

Saudi Arabia

C

Russia

D

UAE

E

 

Answer

C

Instruction

 

 

106

The most chemically polluted city in the world is

A

Linfen (China)

B

Delhi (India)

C

Bangalore (India)

D

Dzerzhinsk (Russia)

E

 

Answer

D

Instruction

 

 

107

Which one of the following is the greenest city in India?

A

Chadigarh

B

Bhopal

C

Patna

D

Pune

E

 

Answer

A

Instruction

 

 

 

 

108

Which three places hold more than 50% of the world's coal deposits?

China

 

India

 

USA

Russia

Select the correct answer using the codes given below:

A

(i), (ii) and (iii)

B

(i), (iii) and (iv)

C

(ii), (iii) and (iv)

D

(i), (ii) and (iv)

E

 

Answer

B

Instruction

 

 

109

The most polluted industrial cluster in India is in

A

Faridabad

B

Ankleshwar

C

Surat

D

Durgapur

E

 

Answer

B

Instruction

 

 

110

Which country is the largest producer of heavy water that is used in nuclear reactors to slow down the speed of neutrons?

A

India

B

Germany

C

Japan

D

France

E

 

Answer

A

Instruction

 

 

111

The Indian city which has the largest number of roof-top solar water heaters is

A

Jaipur

B

Agra

C

Bangalore

D

Ahmedabad

E

 

Answer

C

Instruction

 

 

112

The largest solar power producer in the world is

A

Burma

B

India

C

Iran

D

Germany

E

 

Answer

D

Instruction

 

 

113

The World Geothermal Congress (2010), organised by the International Geothermal Association, was held in

A

New Zealand

B

Sweden

C

Indonesia

D

China

E

 

Answer

C

Instruction

 

 

114

Which one of the following Indian states is a leading harvester of wind energy?

A

Tamil Nadu

B

Punjab

C

Haryana

D

Madhya Pradesh

E

 

Answer

A

Instruction

 

 

115

Stockholm Convention is an international treaty concerned with

A

depletion of ozone layer

B

elimination and restriction of the production and use of persistent organic pollutants

C

climate change aimed at fighting global warming

D

conservation of biodiversity

E

 

Answer

B

Instruction