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

Which gasses are produced from landfills

Question # 2

Spraying of DDT produces pollution of

Question # 3

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

Question # 4

NO and NO2gases in atmosphere are represented by

Question # 5

Ultraviolet radiation from sun causes a reaction that produces

Question # 6

Ozone hole refers to

Question # 7

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

Question # 8

Swage water is purified by

Question # 9

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

Question # 10

SO2Makes ______ acid rains

Question # 11

Water which his considered to be safe for human consumption is known as

Question # 12

Carbon monoxide is harmful to human beings as it

Question # 13

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

Question # 14

Water is often treated with chlorine to

Question # 15

Shahi Qilla may be destroyed by

Question # 16

A pollutant affects

Question # 17

The amount of Si in the lithosphere is about

Question # 18

The normal amount of overhead ozone is about

Question # 19

Which factor is helping to reduce the environmental pollution

Question # 20

Ecosystem is a smaller unit of

Question # 21

The region of earth capable of supporting life is

Question # 22

Fungicides are the pesticides which

Question # 23

Environmental pollution affects

Question # 24

The amount of oxygen in the lithosphere is about

Question # 25

Which is not a method for solid waste management

Question # 26

Soil salinity can be measured by

Question # 27

The % of CO2is the atmosphere is

Question # 28

Depletion of ozone layer is due to

Question # 29

Water pollution is mainly due to

Question # 30

BOD is

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ECAT Chemistry Chapter 27 Important MCQ's

Sr.# Question Answer
1 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
2 Biodegradable pollutant is
A. Plastic
B. Asbestos
C. Sewage
D. Mercury
3 Drained sewage has B.O.D
A. More than that of water
B. Less than that of water
C. Equal to that of water
D. None of the above
4 Classical smog occurs in palces of
A. Excess SO2
B. Low temperature
C. High temperature
D. Excess NH3
5 Carbon monoxide is harmful to human beings as it
A. Is carcinogenic
B. Is antagonistic to CO2
C. Has higher affinity for hemoglobin as compared to oxygen
D. Is destructive to O3
6 Depletion of ozone layer is due to
A. Oxides of nitrogen
B. Oxides of carbon
C. Oxides of sulphur
D. None of the above
7 Which gas is not a constituent of atmosphere
A. Xe
B. O3
C. H2
D. F2
8 Environmental pollution affects
A. Biotic components
B. Plants only
C. Man only
D. Biotic and abiotic components of environment
9 Any substance in the environment which adversely affects the human health and natural functioning of the Ecosystem is known as
A. Environment
B. Hydrosphere
C. Pollutant
D. Biosphere
10 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

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