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

The normal amount of overhead ozone is about

Question # 2

Increased asthmatic attacks in certain seasons are related to

Question # 3

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

Question # 4

As it passes into food chain, the concentration of DDT

Question # 5

Classical smog occurs in palces of

Question # 6

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

Question # 7

Which one of the following is not air pollutant gas

Question # 8

UV radiations bring about

Question # 9

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

Question # 10

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

Question # 11

Spraying of DDT produces pollution of

Question # 12

Ultraviolet radiation from sun causes a reaction that produces

Question # 13

Atomospheric pollutant is

Question # 14

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

Question # 15

Swage water is purified by

Question # 16

Drawback DDT as presticide is

Question # 17

Carbon monoxide is harmful to human beings as it

Question # 18

Which gas is not a constituent of atmosphere

Question # 19

Phosphate pollution is caused by

Question # 20

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

Question # 21

Exposure to CO results in

Question # 22

Which is not a method for solid waste management

Question # 23

Chief air pollutant which is likely to deplete ozone layer

Question # 24

Chloroflurocarbon releases a chemical harmful to ozone

Question # 25

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

Question # 26

The film forming components of paints are

Question # 27

Which heavy metals do not have any safe limits

Question # 28

Water which his considered to be safe for human consumption is known as

Question # 29

Soil remediation means

Question # 30

Sulphur dioxide affects

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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 BOD is
A. Biological oxygen deficit
B. Biosphere oxygen demand
C. Biological oxygen demand
D. None of the above
3 Fungicides are the pesticides which
A. Control the growth of fungus
B. Kill insects
C. Kill plants
D. Kill herbs
4 Phosphate pollution is caused by
A. Weathering of phosphate rocks only
B. Agricultural fertilizers
C. Phosphate rocks and sewage
D. Sewage and agricultural fertilizers
5 Swage water is purified by
A. Microorganisms
B. Light
C. Fishes
D. Aquatic plants
6 SO2Makes ______ acid rains
A. Carbonic acid
B. Sulfuric
C. Nitric acid
D. All of these
7 Which one is not a pollutant normally?
A. Hydrocarbons
B. Carbon dioxide
C. Carbon monoxide
D. Sulphur dioxide
8 Which of the following forms a toxic substance in blood by combing with hemoglobin?
A. Carbon dioxide
B. Carbon monoxide
C. Oxygen
D. Methane
9 Which one of the following is not air pollutant gas
A. CO
B. CO2
C. NO
D. SO2
10 In water the most important oxidizing agent is dissolved molecular oxygen which ranges from
A. 2 - 4 ppm
B. 4 - 6 ppm
C. 2 - 5 ppm
D. 4 - 8 ppm

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