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

Soil salinity can be measured by

Question # 3

Cyclone collector is used for minimizing

Question # 4

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

Question # 5

Phosphate pollution is caused by

Question # 6

Soil remediation means

Question # 7

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

Question # 8

Domestic waste mostly constitutes

Question # 9

Value of chemical oxygen demand (COD) is a measure of chemically oxidizable matter in water. Which value of COD will indicate more polluted water

Question # 10

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

Question # 11

Water is often treated with chlorine to

Question # 12

In incinerating the waste is burnt at

Question # 13

Which step is unnecessary for purification of water for drinking purposes

Question # 14

Which factor is helping to reduce the environmental pollution

Question # 15

DDT is

Question # 16

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

Question # 17

Surface and ground water sources are contaminated by various human activities. Which of the followings is not a human activity that causes contamination in fresh water

Question # 18

Which of the following is not an air

Question # 19

The amount of oxygen in the lithosphere is about

Question # 20

Swage water is purified by

Question # 21

Atomospheric pollutant is

Question # 22

Eutrophication causes reduction in

Question # 23

In purification of potable water the coagulant used is

Question # 24

Which gasses are produced from landfills

Question # 25

SO2and NO2produce pollution by increasing

Question # 26

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

Question # 27

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

Question # 28

Acid rain is due to increase in atmospheric concentration of

Question # 29

Most hazardous metal pollutant of automobile exhaust is

Question # 30

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

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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 Which one is the most toxic?
A. Carbon
B. CO
C. CO2
D. SO2
3 Carbon monoxide is harmful to human beings as it
A. Is carcinogenic
B. Is antagonistic to CO2
C. Has higher affinity for hemoglobin as compared to oxygen
D. Is destructive to O3
4 The amount of oxygen in the lithosphere is about
A. 35.50%
B. 40.60%
C. 56.60%
D. 50.50%
5 DDT is
A. Biodegradable pollutant
B. Nondegradable pollutant
C. Not a pollutant
D. An antibiotic
6 Which gas is not a constituent of atmosphere
A. Xe
B. O3
C. H2
D. F2
7 Atmosphere of big/metropolitan cities is polluted most by
A. Automobile exhausts
B. Pesticide residue
C. Household waste
D. Radio-active fall out
8 Potable water is considered to be
A. Safe for human consumption
B. Not safe for human consumption
C. The surface water
D. The ground water
9 Environmental pollution affects
A. Biotic components
B. Plants only
C. Man only
D. Biotic and abiotic components of environment
10 Which of the following waste material is not recycled for use again
A. Paper
B. Plastic
C. Hides of animals
D. Glass

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