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

Most hazardous metal pollutant of automobile exhaust is

Question # 2

As it passes into food chain, the concentration of DDT

Question # 3

Ecology is a science of environment and deals specially with

Question # 4

SO2Makes ______ acid rains

Question # 5

Water pollution is mainly due to

Question # 6

Ozone layer of stratosphere requires protection from indiscriminate use of

Question # 7

Which is not a method for solid waste management

Question # 8

Which gasses are produced from landfills

Question # 9

Ecosystem is a smaller unit of

Question # 10

In the atmosphere, O2is about

Question # 11

Chief air pollutant which is likely to deplete ozone layer

Question # 12

Ground and surface waters are contaminated and become polluted due to the human activity. Which human activity will bot cause water pollution

Question # 13

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

Question # 14

Atomospheric pollutant is

Question # 15

Drained sewage has B.O.D

Question # 16

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

Question # 17

The amount of Si in the lithosphere is about

Question # 18

Ozone depletion in stratosphere shall result in

Question # 19

Minamata disease is due to pollution of

Question # 20

Which factor is helping to reduce the environmental pollution

Question # 21

Phosphate pollution is caused by

Question # 22

Chief source of water and soil pollution is

Question # 23

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

Question # 24

Drawback DDT as presticide is

Question # 25

What is the cause of water pollution

Question # 26

In incinerating the waste is burnt at

Question # 27

Which gas is not a constituent of atmosphere

Question # 28

Which of the following is responsible for depletion of the ozone layer in the upper strata of the atmosphere?

Question # 29

BOD is

Question # 30

The amount of oxygen in the lithosphere is about

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ECAT Chemistry Chapter 27 Important MCQ's

Sr.# Question Answer
1 Ecosystem is a smaller unit of
A. Hydrosphere
B. Lithosphere
C. Biosphere
D. Atmosphere
2 Chief source of water and soil pollution is
A. Mining
B. Thermal power plant
C. Agro-industry
D. All the above
3 Sulphur dioxide affects
A. Cell wall
B. Plasmodesmata
C. All membrane systems
D. Nucleus
4 Which step is unnecessary for purification of water for drinking purposes
A. Aeration
B. Coagulation
C. Treatment with chlorine
D. Treatment with iodine
5 Water pollution is mainly due to
A. Sulphure dioxide
B. Carbon dioxide
C. Oxygen
D. Industrial discharges
6 Which one is the most toxic?
A. Carbon
B. CO
C. CO2
D. SO2
7 Which factor is helping to reduce the environmental pollution
A. Rapid growth of population
B. Urbanization
C. Industrialization
D. Increase of plantation
8 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
9 Drawback DDT as presticide is
A. I becomes ineffective after some time
B. It is less effective than others
C. It is not easily/rapidly degraded in nature
D. Its high cost
10 The pH of the rain water in areas where acid rain is the cause of pollution may be
A. 6.5
B. 5.6
C. 4.5
D. 2.2

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