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 of the following is not an air

Question # 2

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

Question # 3

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

Question # 4

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

Question # 5

Which factor is helping to reduce the environmental pollution

Question # 6

In purification of potable water the coagulant used is

Question # 7

Atmosphere of big/metropolitan cities is polluted most by

Question # 8

Ozone in most of the tropical regions acts as a pollutant and causes

Question # 9

Which gas is not a constituent of atmosphere

Question # 10

Which one of the following is not air pollutant gas

Question # 11

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

Question # 12

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

Question # 13

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

Question # 14

Increasing skin cancer and high mutation rate are due to

Question # 15

Atomospheric pollutant is

Question # 16

SO2Makes ______ acid rains

Question # 17

The film forming components of paints are

Question # 18

Water is often treated with chlorine to

Question # 19

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

Question # 20

Which gasses are produced from landfills

Question # 21

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

Question # 22

Acid rains are produced by

Question # 23

Chloroflurocarbon releases a chemical harmful to ozone

Question # 24

Ozone depletion in stratosphere shall result in

Question # 25

In incinerating the waste is burnt at

Question # 26

The amount of Si in the lithosphere is about

Question # 27

CFCs destroy ozone layer. How many ozone molecule a chlorine free radical can destroy

Question # 28

Environmental pollution affects

Question # 29

The largest item which is recycled is

Question # 30

Air pollution is not caused by

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ECAT Chemistry Chapter 27 Important MCQ's

Sr.# Question Answer
1 Which of the following is not an air
A. N2
B. N2O
C. NO
D. CO
2 Increasing skin cancer and high mutation rate are due to
A. Acid rain
B. Ozone depletion
C. CO pollution
D. CO2Pollution
3 Chromium (VI) is highly toxic and can cause
A. Blindness
B. Cancer
C. Liver problems
D. Blood problems
4 Which is not a component of environment
A. Biosphere
B. Lithospahre
C. Hydrosphere
D. None of these
5 As it passes into food chain, the concentration of DDT
A. Remains same
B. Decreases
C. Increases
D. Unpredictable
6 Which of the following is responsible for depletion of the ozone layer in the upper strata of the atmosphere?
A. Fullerences
B. Freons
C. Polyhalogens
D. Ferrocene
7 Water pollution is mainly due to
A. Sulphure dioxide
B. Carbon dioxide
C. Oxygen
D. Industrial discharges
8 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
9 The pH range of the acid rain is
A. 8 - 7
B. 7 - 6.5
C. 6.5 - 6
D. Less than 5
10 Polycyolic aromatic hydrocarbons are taught to be
A. Disinfectant
B. Carcinogenic
C. Helpful
D. Reactive

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