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

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

Question # 2

Potable water is considered to be

Question # 3

Cyclone collector is used for minimizing

Question # 4

Which factor is helping to reduce the environmental pollution

Question # 5

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

Question # 6

SO2and NO2produce pollution by increasing

Question # 7

Which of the following is not an air

Question # 8

Biodegradable pollutant is

Question # 9

Ecology is a science of environment and deals specially with

Question # 10

The amount of oxygen in the lithosphere is about

Question # 11

Depletion of ozone layer is due to

Question # 12

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

Question # 13

Which causes water pollution?

Question # 14

Ozone depletion in stratosphere shall result in

Question # 15

Polycyolic aromatic hydrocarbons are taught to be

Question # 16

Drained sewage has B.O.D

Question # 17

In incinerating the waste is burnt at

Question # 18

Eutrophication causes reduction in

Question # 19

Ozone layer of stratosphere requires protection from indiscriminate use of

Question # 20

Soil salinity can be measured by

Question # 21

Which is not a method for solid waste management

Question # 22

Photochemical smog is caused by

Question # 23

Which is not the affect of polluted air on environment

Question # 24

The 95.5% mass of Lithosphone is made of 11 elements i.e. O2, Si, Al, Fe, Ca, Na, K, Mg, Ti, H2and P. which element is present in trace amount

Question # 25

UV radiations bring about

Question # 26

Soil remediation means

Question # 27

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

Question # 28

SO2Makes ______ acid rains

Question # 29

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

Question # 30

Increased asthmatic attacks in certain seasons are related to

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ECAT Chemistry Chapter 27 Important MCQ's

Sr.# Question Answer
1 In the atmosphere, CO2is about
A. 0.01%
B. 0.03%
C. 0.05%
D. 0.09%
2 Chlorofluorocarbon, CF2CI2, plays an effective role in removing O3(ozone) in the stratosphere. Which reaction does not cause the depletion of ozone
3 Air pollution is not caused by
A. Pollen grains
B. Hydroelectric power
C. Industries
D. Automobiles
4 Photochemical smog is caused by
A. CO
B. CO2
C. O3
D. NO2
5 Ecosystem is a smaller unit of
A. Hydrosphere
B. Lithosphere
C. Biosphere
D. Atmosphere
6 Any substance in the environment which adversely affects the human health and natural functioning of the Ecosystem is known as
A. Environment
B. Hydrosphere
C. Pollutant
D. Biosphere
7 Atomospheric pollutant is
A. CO2
B. CO
C. O2
D. N2
8 Drawback DDT as presticide is
A. I becomes ineffective after some time
B. It is less effective than others
C. It is not easily/rapidly degraded in nature
D. Its high cost
9 Acid rain is due to increase in atmospheric concentration of
A. Ozone and dust
B. CO2and CO
C. SO3and CO
D. SO2and NO2
10 Which one is not a pollutant normally?
A. Hydrocarbons
B. Carbon dioxide
C. Carbon monoxide
D. Sulphur dioxide

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