ECAT Pre Engineering Chemistry Chapter 27 MCQ Test With Answer

MCQ's Test For ECAT Chemistry Chapter 27 Environmental Chemistry

Try The MCQ's Test For ECAT Chemistry Chapter 27 Environmental Chemistry

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ECAT Chemistry Chapter 27 Environmental Chemistry

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Question # 1

In Antarctica ozone depletion is due to the formation of following compound

Question # 2

Surface and ground water sources are contaminated by various human activities. Which of the followings is not a human activity that causes contamination in fresh water

Question # 3

The region of earth capable of supporting life is

Question # 4

A single chlorine free radical can destroy how many ozone molecules

Question # 5

Which causes water pollution?

Question # 6

Increased asthmatic attacks in certain seasons are related to

Question # 7

Pick up the correct statement

Question # 8

Eutrophication causes reduction in

Question # 9

Which one of the following dissolves more rapidly in blood hemoglobin than oxygen?

Question # 10

Which of the following is not an air

Question # 11

Result of ozone hole is

Question # 12

Cyclone collector is used for minimizing

Question # 13

Swage water is purified by

Question # 14

Classical smog occurs in palces of

Question # 15

Atmosphere of big/metropolitan cities is polluted most by

Question # 16

Any substance in the environment which adversely affects the human health and natural functioning of the Ecosystem is known as

Question # 17

SO2Makes ______ acid rains

Question # 18

Burning of fossil fuels is the main source of pollution

Question # 19

Spraying of DDT produces pollution of

Question # 20

Which one is the major reason for pollution in high cities?

Question # 21

The pH range of the acid rain is

Question # 22

The amount of Si in the lithosphere is about

Question # 23

Carbon monoxide is pollutant as it

Question # 24

The toxic organic compounds and heavy metals and metalloids results in contamination of

Question # 25

Which factor is helping to reduce the environmental pollution

Question # 26

Chromium (VI) is highly toxic and can cause

Question # 27

Air pollution is not caused by

Question # 28

Which one of the following is not air pollutant gas

Question # 29

The film forming components of paints are

Question # 30

Chromium (VI) is highly toxic and can cause

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ECAT Chemistry Chapter 27 Important MCQ's

Sr.# Question Answer
1 Pick up the correct statement
A. CO which is major pollutant resulting from the combustion of fuels in automobile plays a major role in photochemical smog
B. Classical smog has an oxidizing character while the phtochemical smog is reducing in character
C. Photochemical smog occurs in day time whereas the classical smog occurs in early morning hours
D. During formation of smog the level of ozone in the atmosphere goes down
2 Chief air pollutant which is likely to deplete ozone layer
A. Sulphure dioxide
B. Carbon dioxide
C. Nitrogen oxides and chloro fluorocarbons
3 Chromium (VI) is highly toxic and can cause
A. Blindness
B. Cancer
C. Liver problems
D. Blood problems
4 In Antarctica ozone depletion is due to the formation of following compound
A. Acrolein
B. Peroxy acetyl nitrate
C. SO2and SO3
D. Chlorine nitrate
5 Water is often treated with chlorine to
A. Increase oxygen content
B. Kill germs
C. Remove hardness
D. Remove suspended particles
6 Which one is the major reason for pollution in high cities?
A. Fossil fuel
B. Acid rain
C. Heat dispersion
D. None of the above
7 Which factor is helping to reduce the environmental pollution
A. Rapid growth of population
B. Urbanization
C. Industrialization
D. Increase of plantation
8 Domestic waste mostly constitutes
A. Non-biodegradable pollution
B. Biodegradable pollution
C. Effluents
D. Air pollution
9 When chlorofluoro carbon are subjected to U.V. they form
A. Cations
B. Anions
C. Free radicals
D. None of these
10 Minamata disease is due to pollution of
A. Organic waste into drinking water
B. Oil spill in water
C. Industrial waste containing mercury into fishing water
D. Arsenic into the atmosphere

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