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

00:00
Question # 1

What is the cause of water pollution

Question # 2

Ecology is a science of environment and deals specially with

Question # 3

As it passes into food chain, the concentration of DDT

Question # 4

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

Question # 5

When chlorofluoro carbon are subjected to U.V. they form

Question # 6

Which is not the condition for the formation of smog

Question # 7

Chromium (VI) is highly toxic and can cause

Question # 8

The largest item which is recycled is

Question # 9

Domestic waste mostly constitutes

Question # 10

Ozone hole refers to

Question # 11

Acid rain is caused when various atmospheric gases dissolve in rain water. What are the gases that cause rain water

Question # 12

Which of the following forms a toxic substance in blood by combing with hemoglobin?

Question # 13

Which of the following is not an air

Question # 14

Air pollution is not caused by

Question # 15

Carbon monoxide is pollutant as it

Question # 16

Swage water is purified by

Question # 17

Which of the following human activities are contaminating surface and ground waters

Question # 18

Chief air pollutant which is likely to deplete ozone layer

Question # 19

The normal amount of overhead ozone is about

Question # 20

Classical smog occurs in palces of

Question # 21

Which one is the most toxic?

Question # 22

The region of earth capable of supporting life is

Question # 23

Ozone depletion in stratosphere shall result in

Question # 24

Carbon monoxide, emitted by automobiles, prevents transport of oxygen in body due

Question # 25

Atmosphere of big/metropolitan cities is polluted most by

Question # 26

Phosphate pollution is caused by

Question # 27

Drawback DDT as presticide is

Question # 28

Most hazardous metal pollutant of automobile exhaust is

Question # 29

Soil salinity can be measured by

Question # 30

The pH of the rain water in areas where acid rain is the cause of pollution may be

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ECAT Chemistry Chapter 27 Important MCQ's

Sr.# Question Answer
1 The largest item which is recycled is
A. Newspaper
B. Plastic
C. Aluminium
D. Oil
2 The % of CO2is the atmosphere is
A. 3.0%
B. 0.03%
C. 0.3%
D. 0.5%
3 Which gas is not a constituent of atmosphere
A. Xe
B. O3
C. H2
D. F2
4 Soil remediation means
A. To make it suitable for cultivation of crops
B. To make it acidic
C. To make it alkeline
D. To add manure into it
5 Pollutant of automobile exhausts that affects nervous system/produces mental diseases is
A. Mercury
B. Lead
C. Nitrogen oxide
D. Sulphuric oxide
6 Which of the following human activities are contaminating surface and ground waters
A. Pesticides
B. Septic tanks
C. Petroleum and natural gas production
D. All of these
7 Chief source of water and soil pollution is
A. Mining
B. Thermal power plant
C. Agro-industry
D. All the above
8 To purify water which has mud dissolved in it, A substance which coagulates the suspended particles is used. The coagulant may be
A. Ag+
B. Cu2+
C. Al3+
D. Si4+
9 Fungicides are the pesticides which
A. Control the growth of fungus
B. Kill insects
C. Kill plants
D. Kill herbs
10 Chlorofluorocarbon, CF2CI2, plays an effective role in removing O3(ozone) in the stratosphere. Which reaction does not cause the depletion of ozone

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