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

In incinerating the waste is burnt at

Question # 2

Which factor is helping to reduce the environmental pollution

Question # 3

Fungicides are the pesticides which

Question # 4

In Antarctica ozone depletion is due to the formation of following compound

Question # 5

Contamination of Hg comes into surface water from chlor industrial wastes. Why is Hg toxic

Question # 6

B.O.D is connected with

Question # 7

Chief source of water and soil pollution is

Question # 8

Sulphur dioxide affects

Question # 9

Environmental pollution affects

Question # 10

Ecosystem is a smaller unit of

Question # 11

Drawback DDT as presticide is

Question # 12

Which step is unnecessary for purification of water for drinking purposes

Question # 13

Depletion of ozone layer is due to

Question # 14

Chief air pollutant which is likely to deplete ozone layer

Question # 15

Most hazardous metal pollutant of automobile exhaust is

Question # 16

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

Question # 17

DDT is

Question # 18

Result of ozone hole is

Question # 19

Pollutant of automobile exhausts that affects nervous system/produces mental diseases is

Question # 20

Exposure to CO results in

Question # 21

Which one of the following is not air pollutant gas

Question # 22

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

Question # 23

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

Question # 24

One of the environmental problem is the formation of oil slicks when oil is spilled from tankers in sea water. Which treatment is suitable to remove oil slicks

Question # 25

Atmosphere of big/metropolitan cities is polluted most by

Question # 26

Oceans cove ______ percent of the surface of the earth

Question # 27

A pollutant affects

Question # 28

The normal amount of overhead ozone is about

Question # 29

Which is not a component of environment

Question # 30

Air pollution is not caused by

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ECAT Chemistry Chapter 27 Important MCQ's

Sr.# Question Answer
1 Increasing skin cancer and high mutation rate are due to
A. Acid rain
B. Ozone depletion
C. CO pollution
D. CO2Pollution
2 Exposure to CO results in
A. Headache
B. Fatigue
C. Unconsciousness
D. All of these
3 Chromium (VI) is highly toxic and can cause
A. Blindness
B. Cancer
C. Liver problems
D. Blood problems
4 The pH range of the acid rain is
A. 8 - 7
B. 7 - 6.5
C. 6.5 - 6
D. Less than 5
5 The amount of Si in the lithosphere is about
A. 27.72%
B. 30.35%
C. 35.30%
D. 40.21%
6 UV radiations bring about
A. Skin cancer
B. Mouth cancer
C. Lung cancer
D. Liver cancer
7 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
8 Which is not a method for solid waste management
A. Landfill
B. Incinerating
C. Recycling
D. None of these
9 BOD is
A. Biological oxygen deficit
B. Biosphere oxygen demand
C. Biological oxygen demand
D. None of the above
10 The largest item which is recycled is
A. Newspaper
B. Plastic
C. Aluminium
D. Oil

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