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

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

Question # 2

Spraying of DDT produces pollution of

Question # 3

Potable water is considered to be

Question # 4

The film forming components of paints are

Question # 5

The amount of Si in the lithosphere is about

Question # 6

Exposure to CO results in

Question # 7

The region of earth capable of supporting life is

Question # 8

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

Question # 9

Phosphate pollution is caused by

Question # 10

Cyclone collector is used for minimizing

Question # 11

The amount of oxygen in the lithosphere is about

Question # 12

Fungicides are the pesticides which

Question # 13

Biodegradable pollutant is

Question # 14

Atomospheric pollutant is

Question # 15

UV radiations bring about

Question # 16

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

Question # 17

In incinerating the waste is burnt at

Question # 18

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 # 19

DDT is

Question # 20

Most hazardous metal pollutant of automobile exhaust is

Question # 21

When rain is accompanied by a thunderstorm, the collected rain water will have a pH value

Question # 22

Hydrocarbans, SO2, CO, NH3, nitrogen oxides and compounds of fluorine are called

Question # 23

Air pollution is not caused by

Question # 24

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

Question # 25

Which one is the most toxic?

Question # 26

Chloroflurocarbon releases a chemical harmful to ozone

Question # 27

Which factor is helping to reduce the environmental pollution

Question # 28

Which is not the affect of polluted air on environment

Question # 29

Drained sewage has B.O.D

Question # 30

Depletion of ozone layer is due to

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ECAT Chemistry Chapter 27 Important MCQ's

Sr.# Question Answer
1 Carbon monoxide is pollutant as it
A. Inactivates nerves
B. Inhibits glycolysis
C. Combines with oxygen
D. Combines with hemoglobin
2 Domestic waste mostly constitutes
A. Non-biodegradable pollution
B. Biodegradable pollution
C. Effluents
D. Air pollution
3 Potable water is considered to be
A. Safe for human consumption
B. Not safe for human consumption
C. The surface water
D. The ground water
4 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
5 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
6 The region of earth capable of supporting life is
A. Hydrosphere
B. Lithosphere
C. Biosphere
D. Atmosphere
7 Acid rains are produced by
A. Excess NO2and SO2 from burining fossil fuels
B. Excess production of NH3by industry and coal gas
C. Excess release of carbon monoxide by incomplete combustion
D. Excess formation of CO2by combustion and animal respiration
8 Chloroflurocarbon releases a chemical harmful to ozone
A. Fluorine
B. Chlorine
C. Nitrogen peroxide
D. Sulphure dioxdie
9 Fungicides are the pesticides which
A. Control the growth of fungus
B. Kill insects
C. Kill plants
D. Kill herbs
10 Which factor is helping to reduce the environmental pollution
A. Rapid growth of population
B. Urbanization
C. Industrialization
D. Increase of plantation

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