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

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

Question # 2

The region of earth capable of supporting life is

Question # 3

B.O.D is connected with

Question # 4

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

Question # 5

Environmental pollution affects

Question # 6

Which one is not a pollutant normally?

Question # 7

Minamata disease is due to pollution of

Question # 8

Phosphate pollution is caused by

Question # 9

Soil salinity can be measured by

Question # 10

Sulphur dioxide affects

Question # 11

DDT is

Question # 12

Photochemical smog is caused by

Question # 13

Domestic waste mostly constitutes

Question # 14

Industrial effuents have toxic synthetic organic compounds as well as heavy metals like

Question # 15

Cyclone collector is used for minimizing

Question # 16

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

Question # 17

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

Question # 18

Polycyolic aromatic hydrocarbons are taught to be

Question # 19

Acid rains are produced by

Question # 20

Carbon monoxide is pollutant as it

Question # 21

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

Question # 22

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

Question # 23

Chief air pollutant which is likely to deplete ozone layer

Question # 24

Ground and surface waters are contaminated and become polluted due to the human activity. Which human activity will bot cause water pollution

Question # 25

The film forming components of paints are

Question # 26

Result of ozone hole is

Question # 27

Which is not a component of environment

Question # 28

Shahi Qilla may be destroyed by

Question # 29

In purification of potable water the coagulant used is

Question # 30

A single chlorine free radical can destroy how many ozone molecules

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ECAT Chemistry Chapter 27 Important MCQ's

Sr.# Question Answer
1 Water which his considered to be safe for human consumption is known as
A. Distilled water
B. Contaminated water
C. Potable water
D. Rain water
2 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
3 Drained sewage has B.O.D
A. More than that of water
B. Less than that of water
C. Equal to that of water
D. None of the above
4 A pollutant affects
A. Human health
B. Quality of life
C. Functioning of ecosystem
D. All of these
5 Carbon monoxide is pollutant as it
A. Inactivates nerves
B. Inhibits glycolysis
C. Combines with oxygen
D. Combines with hemoglobin
6 The % of CO2is the atmosphere is
A. 3.0%
B. 0.03%
C. 0.3%
D. 0.5%
7 Depletion of ozone layer is due to
A. Oxides of nitrogen
B. Oxides of carbon
C. Oxides of sulphur
D. None of the above
8 The pH of the rain water in areas where acid rain is the cause of pollution may be
A. 6.5
B. 5.6
C. 4.5
D. 2.2
9 Which is not the affect of polluted air on environment
A. Acid rain
B. Smog
C. Ozone
D. Global warming
10 In incinerating the waste is burnt at
A. 1000°C
B. 100°C
C. 2000°C
D. 1500°C

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