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

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

Question # 2

Minamata disease is due to pollution of

Question # 3

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

Question # 4

Which gasses are produced from landfills

Question # 5

Water is often treated with chlorine to

Question # 6

The film forming components of paints are

Question # 7

Carbon monoxide is harmful to human beings as it

Question # 8

Ultraviolet radiation from sun causes a reaction that produces

Question # 9

Polycyolic aromatic hydrocarbons are taught to be

Question # 10

Swage water is purified by

Question # 11

Acid rain is due to increase in atmospheric concentration of

Question # 12

Exposure to CO results in

Question # 13

Drawback DDT as presticide is

Question # 14

Biodegradable pollutant is

Question # 15

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

Question # 16

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

Question # 17

Atomospheric pollutant is

Question # 18

Chief source of water and soil pollution is

Question # 19

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

Question # 20

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

Question # 21

In incinerating the waste is burnt at

Question # 22

Which heavy metals do not have any safe limits

Question # 23

Ozone hole refers to

Question # 24

SO2and NO2produce pollution by increasing

Question # 25

Which factor is helping to reduce the environmental pollution

Question # 26

What is the cause of water pollution

Question # 27

Sulphur dioxide affects

Question # 28

Air pollution is not caused by

Question # 29

Ecology is a science of environment and deals specially with

Question # 30

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

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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 In incinerating the waste is burnt at
A. 1000°C
B. 100°C
C. 2000°C
D. 1500°C
3 Ground and surface waters are contaminated and become polluted due to the human activity. Which human activity will bot cause water pollution
A. Live stock waste
B. Agricultural pesticides
C. Oil breaks and spills
D. All of the above
4 Carbon monoxide, emitted by automobiles, prevents transport of oxygen in body due
A. Combining with oxygen to form carbon dioxide
B. Destruction of hemoglobin
C. Preventing reaction between oxygen and hemoglobin
D. Forming stable compound with hemoglobin
5 DDT is
A. Biodegradable pollutant
B. Nondegradable pollutant
C. Not a pollutant
D. An antibiotic
6 Which is not a method for solid waste management
A. Landfill
B. Incinerating
C. Recycling
D. None of these
7 Shahi Qilla may be destroyed by
A. Flood in Ravi
B. Temperature mediated spoilage of marble
C. Air pollutants from Lahore chemical industries
D. All the above
8 The region of earth capable of supporting life is
A. Hydrosphere
B. Lithosphere
C. Biosphere
D. Atmosphere
9 Which is not a component of environment
A. Biosphere
B. Lithospahre
C. Hydrosphere
D. None of these
10 Phosphate pollution is caused by
A. Weathering of phosphate rocks only
B. Agricultural fertilizers
C. Phosphate rocks and sewage
D. Sewage and agricultural fertilizers

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