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

What is the cause of water pollution

Question # 2

Sulphur dioxide affects

Question # 3

Ozone hole is maximum over

Question # 4

In purification of potable water the coagulant used is

Question # 5

As it passes into food chain, the concentration of DDT

Question # 6

Which step is unnecessary for purification of water for drinking purposes

Question # 7

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

Question # 8

Fungicides are the pesticides which

Question # 9

SO2and NO2produce pollution by increasing

Question # 10

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

Question # 11

Pick up the correct statement

Question # 12

Which of the following is not an air

Question # 13

Eutrophication causes reduction in

Question # 14

In incinerating the waste is burnt at

Question # 15

Ecology is a science of environment and deals specially with

Question # 16

Which one is the most toxic?

Question # 17

Shahi Qilla may be destroyed by

Question # 18

Domestic waste mostly constitutes

Question # 19

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

Question # 20

Phosphate pollution is caused by

Question # 21

Chief source of water and soil pollution is

Question # 22

Chromium (VI) is highly toxic and can cause

Question # 23

Which gasses are produced from landfills

Question # 24

Spraying of DDT produces pollution of

Question # 25

Which is not the condition for the formation of smog

Question # 26

Water pollution is mainly due to

Question # 27

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

Question # 28

Air pollution is not caused by

Question # 29

Acid rains are produced by

Question # 30

Ozone depletion in stratosphere shall result in

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ECAT Chemistry Chapter 27 Important MCQ's

Sr.# Question Answer
1 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
2 Ozone layer of stratosphere requires protection from indiscriminate use of
A. Fungicides, insecticides, bactericides and medicines
B. Aerosols and high flying jets
C. Atomic explosions and industrial wastes
D. Baloons and turbo-prop aeroplanes
3 Increased asthmatic attacks in certain seasons are related to
A. Inhalation of seasonal pollen
B. Eating of seasonal vegetables
C. Low temperature
D. Wet and dry environment
4 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
5 Carbon monoxide is pollutant as it
A. Inactivates nerves
B. Inhibits glycolysis
C. Combines with oxygen
D. Combines with hemoglobin
6 Chromium (VI) is highly toxic and can cause
A. Blindness
B. Cancer
C. Liver problems
D. Blood problems
7 Soil remediation means
A. To make it suitable for cultivation of crops
B. To make it acidic
C. To make it alkeline
D. To add manure into it
8 Classical smog occurs in palces of
A. Excess SO2
B. Low temperature
C. High temperature
D. Excess NH3
9 Burning of fossil fuels is the main source of pollution
A. Nitrogen oxide
B. Nitric oxide
C. Nitrous oxide
D. Sulphur dioxide
10 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

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