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

Ozone layer of stratosphere requires protection from indiscriminate use of

Question # 2

Drawback DDT as presticide is

Question # 3

Which of the following waste material is not recycled for use again

Question # 4

Sulphur dioxide affects

Question # 5

Which one of the following is not air pollutant gas

Question # 6

Acid rains are produced by

Question # 7

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

Question # 8

Carbon monoxide is harmful to human beings as it

Question # 9

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

Question # 10

Chlorofluorocarbon, CF2CI2, plays an effective role in removing O3(ozone) in the stratosphere. Which reaction does not cause the depletion of ozone

Question # 11

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 # 12

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

Question # 13

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

Question # 14

Ozone depletion in stratosphere shall result in

Question # 15

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

Question # 16

The region of earth capable of supporting life is

Question # 17

Chloroflurocarbon releases a chemical harmful to ozone

Question # 18

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

Question # 19

Which step is unnecessary for purification of water for drinking purposes

Question # 20

Which causes water pollution?

Question # 21

Spraying of DDT produces pollution of

Question # 22

Which is not a method for solid waste management

Question # 23

In water the most important oxidizing agent is dissolved molecular oxygen which ranges from

Question # 24

Phosphate pollution is caused by

Question # 25

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

Question # 26

Water pollution is mainly due to

Question # 27

Which gasses are produced from landfills

Question # 28

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

Question # 29

DDT is

Question # 30

Which one is not a pollutant normally?

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ECAT Chemistry Chapter 27 Important MCQ's

Sr.# Question Answer
1 UV radiations bring about
A. Skin cancer
B. Mouth cancer
C. Lung cancer
D. Liver cancer
2 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
3 Ozone depletion in stratosphere shall result in
A. Forest fires
B. Increased incidence of skin cancer
C. Global warming
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 Which is not a method for solid waste management
A. Landfill
B. Incinerating
C. Recycling
D. None of these
6 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
7 Which is not the affect of polluted air on environment
A. Acid rain
B. Smog
C. Ozone
D. Global warming
8 Domestic waste mostly constitutes
A. Non-biodegradable pollution
B. Biodegradable pollution
C. Effluents
D. Air pollution
9 Acid rain is caused when various atmospheric gases dissolve in rain water. What are the gases that cause rain water
A. SO2
B. NO2
C. CO
D. A and b only
10 Pollutant of automobile exhausts that affects nervous system/produces mental diseases is
A. Mercury
B. Lead
C. Nitrogen oxide
D. Sulphuric oxide

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