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

DDT is

Question # 2

Shahi Qilla may be destroyed by

Question # 3

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

Question # 4

Ozone hole refers to

Question # 5

Atomospheric pollutant is

Question # 6

The film forming components of paints are

Question # 7

Spraying of DDT produces pollution of

Question # 8

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

Question # 9

In purification of potable water the coagulant used is

Question # 10

In incinerating the waste is burnt at

Question # 11

Acid rains are produced by

Question # 12

Carbon monoxide is harmful to human beings as it

Question # 13

B.O.D is connected with

Question # 14

Which factor is helping to reduce the environmental pollution

Question # 15

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

Question # 16

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

Question # 17

Which of the following waste material is not recycled for use again

Question # 18

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

Question # 19

Water pollution is mainly due to

Question # 20

Carbon monoxide is pollutant as it

Question # 21

Sulphur dioxide affects

Question # 22

Domestic waste mostly constitutes

Question # 23

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

Question # 24

Soil salinity can be measured by

Question # 25

UV radiations bring about

Question # 26

Chloroflurocarbon releases a chemical harmful to ozone

Question # 27

The amount of Si in the lithosphere is about

Question # 28

Oceans cove ______ percent of the surface of the earth

Question # 29

Depletion of ozone layer is due to

Question # 30

Atmosphere of big/metropolitan cities is polluted most by

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ECAT Chemistry Chapter 27 Important MCQ's

Sr.# Question Answer
1 Which of the following waste material is not recycled for use again
A. Paper
B. Plastic
C. Hides of animals
D. Glass
2 The pH range of the acid rain is
A. 8 - 7
B. 7 - 6.5
C. 6.5 - 6
D. Less than 5
3 Hydrocarbans, SO2, CO, NH3, nitrogen oxides and compounds of fluorine are called
A. Primary pollutant
B. Secondary pollutant
C. Tertiary pollutant
D. None of these
4 BOD is
A. Biological oxygen deficit
B. Biosphere oxygen demand
C. Biological oxygen demand
D. None of the above
5 As it passes into food chain, the concentration of DDT
A. Remains same
B. Decreases
C. Increases
D. Unpredictable
6 Which gas is not a constituent of atmosphere
A. Xe
B. O3
C. H2
D. F2
7 Minamata disease is due to pollution of
A. Organic waste into drinking water
B. Oil spill in water
C. Industrial waste containing mercury into fishing water
D. Arsenic into the atmosphere
8 A pollutant affects
A. Human health
B. Quality of life
C. Functioning of ecosystem
D. All of these
9 A single chlorine free radical can destroy how many ozone molecules
A. 100
B. 100000
C. 10000
D. 10
10 Soil salinity can be measured by
A. Calorimeter
B. Potometer
C. Porometer
D. Conducitvity meter

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