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

Pollutant of automobile exhausts that affects nervous system/produces mental diseases is

Question # 2

Which one of the following is not air pollutant gas

Question # 3

NO and NO2gases in atmosphere are represented by

Question # 4

In incinerating the waste is burnt at

Question # 5

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

Question # 6

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

Question # 7

Which of the following human activities are contaminating surface and ground waters

Question # 8

Environmental pollution affects

Question # 9

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

Question # 10

Chief air pollutant which is likely to deplete ozone layer

Question # 11

Soil remediation means

Question # 12

Classical smog occurs in palces of

Question # 13

When chlorofluoro carbon are subjected to U.V. they form

Question # 14

The normal amount of overhead ozone is about

Question # 15

Acid rain is due to increase in atmospheric concentration of

Question # 16

Air pollution is not caused by

Question # 17

Drained sewage has B.O.D

Question # 18

Increased asthmatic attacks in certain seasons are related to

Question # 19

The amount of Si in the lithosphere is about

Question # 20

Atmosphere of big/metropolitan cities is polluted most by

Question # 21

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

Question # 22

Carbon monoxide is pollutant as it

Question # 23

Exposure to CO results in

Question # 24

Ecology is a science of environment and deals specially with

Question # 25

Chlorofluorocarbon, CF2CI2, plays an effective role in removing O3(ozone) in the stratosphere. Which reaction does not cause the depletion of ozone

Question # 26

Which one is not a pollutant normally?

Question # 27

Carbon monoxide is harmful to human beings as it

Question # 28

Spraying of DDT produces pollution of

Question # 29

Which heavy metals do not have any safe limits

Question # 30

Soil salinity can be measured by

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ECAT Chemistry Chapter 27 Important MCQ's

Sr.# Question Answer
1 Which of the following is responsible for depletion of the ozone layer in the upper strata of the atmosphere?
A. Fullerences
B. Freons
C. Polyhalogens
D. Ferrocene
2 Which heavy metals do not have any safe limits
A. As
B. Hg
C. Cr
D. All of these
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 SO2and NO2produce pollution by increasing
A. Alkalinity
B. Acidity
C. Neutrality
D. Buffer action
5 In incinerating the waste is burnt at
A. 1000°C
B. 100°C
C. 2000°C
D. 1500°C
6 UV radiations bring about
A. Skin cancer
B. Mouth cancer
C. Lung cancer
D. Liver cancer
7 A pollutant affects
A. Human health
B. Quality of life
C. Functioning of ecosystem
D. All of these
8 Which of the following waste material is not recycled for use again
A. Paper
B. Plastic
C. Hides of animals
D. Glass
9 Ozone hole refers to
A. Hole in ozone layers
B. Reduction in thickness of ozone layer in stratosphere
C. Reduction of thickness of ozone in troposphere
D. Increase concentration of ozone
10 In the atmosphere, CO2is about
A. 0.01%
B. 0.03%
C. 0.05%
D. 0.09%

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