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

As it passes into food chain, the concentration of DDT

Question # 2

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

Question # 3

Exposure to CO results in

Question # 4

In the atmosphere, CO2is about

Question # 5

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

Question # 6

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

Question # 7

Ozone hole is maximum over

Question # 8

Which is not the affect of polluted air on environment

Question # 9

Phosphate pollution is caused by

Question # 10

In incinerating the waste is burnt at

Question # 11

Soil salinity can be measured by

Question # 12

Result of ozone hole is

Question # 13

Chief source of water and soil pollution is

Question # 14

Atmosphere of big/metropolitan cities is polluted most by

Question # 15

Sulphur dioxide affects

Question # 16

Biodegradable pollutant is

Question # 17

Increasing skin cancer and high mutation rate are due to

Question # 18

A pollutant affects

Question # 19

The film forming components of paints are

Question # 20

Depletion of ozone layer is due to

Question # 21

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

Question # 22

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

Question # 23

Potable water is considered to be

Question # 24

Water is often treated with chlorine to

Question # 25

In purification of potable water the coagulant used is

Question # 26

Eutrophication causes reduction in

Question # 27

Drawback DDT as presticide is

Question # 28

Ozone hole refers to

Question # 29

Air pollution is not caused by

Question # 30

Which is not a component of environment

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ECAT Chemistry Chapter 27 Important MCQ's

Sr.# Question Answer
1 Pollution is
A. Removal of top soill
B. Release of toxic/undesirable materials in enevironment
C. Conversation of energy
D. All the above
2 Which one of the following dissolves more rapidly in blood hemoglobin than oxygen?
A. Ozone
B. Nitrous oxide
C. Sulphure dioxide
D. Carbon monoxide
3 In the atmosphere, CO2is about
A. 0.01%
B. 0.03%
C. 0.05%
D. 0.09%
4 CFCs destroy ozone layer. How many ozone molecule a chlorine free radical can destroy
A. 10,000
B. 20,000
C. 100,000
D. 50,000
5 Swage water is purified by
A. Microorganisms
B. Light
C. Fishes
D. Aquatic plants
6 What is the cause of water pollution
A. Chemical and bacterial contents in live stock
B. The spilled oil in rivers and ponds
C. Wide spread use of pesticides
D. All of the above
7 Which factor is helping to reduce the environmental pollution
A. Rapid growth of population
B. Urbanization
C. Industrialization
D. Increase of plantation
8 Water is often treated with chlorine to
A. Increase oxygen content
B. Kill germs
C. Remove hardness
D. Remove suspended particles
9 Environmental pollution affects
A. Biotic components
B. Plants only
C. Man only
D. Biotic and abiotic components of environment
10 SO2Makes ______ acid rains
A. Carbonic acid
B. Sulfuric
C. Nitric acid
D. All of these

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