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

  • Total Questions30

  • Time Allowed30

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ECAT Chemistry Chapter 27 Environmental Chemistry

00:00
Question # 1

Hydrocarbans, SO2, CO, NH3, nitrogen oxides and compounds of fluorine are called

Question # 2

Which is not a method for solid waste management

Question # 3

NO and NO2gases in atmosphere are represented by

Question # 4

In the atmosphere, O2is about

Question # 5

Air pollution is not caused by

Question # 6

Depletion of ozone layer is due to

Question # 7

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

Question # 8

Which is not a component of environment

Question # 9

Burning of fossil fuels is the main source of pollution

Question # 10

DDT is

Question # 11

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

Question # 12

UV radiations bring about

Question # 13

Carbon monoxide is pollutant as it

Question # 14

The amount of oxygen in the lithosphere is about

Question # 15

Photochemical smog is caused by

Question # 16

Increased asthmatic attacks in certain seasons are related to

Question # 17

Ozone depletion in stratosphere shall result in

Question # 18

Cyclone collector is used for minimizing

Question # 19

Which one is the most toxic?

Question # 20

Classical smog occurs in palces of

Question # 21

Ultraviolet radiation from sun causes a reaction that produces

Question # 22

Exposure to CO results in

Question # 23

Swage water is purified by

Question # 24

In the atmosphere, CO2is about

Question # 25

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

Question # 26

Which causes water pollution?

Question # 27

Water is often treated with chlorine to

Question # 28

Ozone hole refers to

Question # 29

Pick up the correct statement

Question # 30

In incinerating the waste is burnt at

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ECAT Chemistry Chapter 27 Important MCQ's

Sr.# Question Answer
1 To purify water which has mud dissolved in it, A substance which coagulates the suspended particles is used. The coagulant may be
A. Ag+
B. Cu2+
C. Al3+
D. Si4+
2 The % of CO2is the atmosphere is
A. 3.0%
B. 0.03%
C. 0.3%
D. 0.5%
3 Atomospheric pollutant is
A. CO2
B. CO
C. O2
D. N2
4 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
5 Which is not a method for solid waste management
A. Landfill
B. Incinerating
C. Recycling
D. None of these
6 Photochemical smog is caused by
A. CO
B. CO2
C. O3
D. NO2
7 Chromium (VI) is highly toxic and can cause
A. Blindness
B. Cancer
C. Liver problems
D. Blood problems
8 Which one of the following is not air pollutant gas
A. CO
B. CO2
C. NO
D. SO2
9 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
10 Which gas is not a constituent of atmosphere
A. Xe
B. O3
C. H2
D. F2

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