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

Minamata disease is due to pollution of

Question # 2

Environmental pollution affects

Question # 3

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

Question # 4

The % of CO2is the atmosphere is

Question # 5

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

Question # 6

Ecology is a science of environment and deals specially with

Question # 7

Soil salinity can be measured by

Question # 8

Pollution is

Question # 9

Which causes water pollution?

Question # 10

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 # 11

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

Question # 12

Air pollution is not caused by

Question # 13

In the atmosphere, CO2is about

Question # 14

BOD is

Question # 15

Atmosphere of big/metropolitan cities is polluted most by

Question # 16

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 # 17

Chromium (VI) is highly toxic and can cause

Question # 18

A single chlorine free radical can destroy how many ozone molecules

Question # 19

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

Question # 20

Which is not a component of environment

Question # 21

In incinerating the waste is burnt at

Question # 22

Chloroflurocarbon releases a chemical harmful to ozone

Question # 23

Photochemical smog is caused by

Question # 24

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

Question # 25

Ecosystem is a smaller unit of

Question # 26

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

Question # 27

Water pollution is mainly due to

Question # 28

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

Question # 29

Soil remediation means

Question # 30

Chief source of water and soil pollution is

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ECAT Chemistry Chapter 27 Important MCQ's

Sr.# Question Answer
1 Acid rain is caused when various atmospheric gases dissolve in rain water. What are the gases that cause rain water
A. SO2
B. NO2
C. CO
D. A and b only
2 Water pollution is mainly due to
A. Sulphure dioxide
B. Carbon dioxide
C. Oxygen
D. Industrial discharges
3 When rain is accompanied by a thunderstorm, the collected rain water will have a pH value
A. Uninfluenced by occurrence of thuderstorm
B. Which depends on the amount of dust in air
C. Slightly lower than that of rain water without thunderstorm
D. Slighlty higher than that when the thunderstom is not there
4 Minamata disease is due to pollution of
A. Organic waste into drinking water
B. Oil spill in water
C. Industrial waste containing mercury into fishing water
D. Arsenic into the atmosphere
5 SO2and NO2produce pollution by increasing
A. Alkalinity
B. Acidity
C. Neutrality
D. Buffer action
6 One of the environmental problem is the formation of oil slicks when oil is spilled from tankers in sea water. Which treatment is suitable to remove oil slicks
A. Blow air
B. Add Na2CO3
C. Use a specially made sorbent having flouring trapped in it
D. Use a sorbent having Al2O3trapped in it
7 The toxic organic compounds and heavy metals and metalloids results in contamination of
A. Surface water
B. Ground water
C. Both surface and ground water
D. Neither surface nor ground waters
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 Soil remediation means
A. To make it suitable for cultivation of crops
B. To make it acidic
C. To make it alkeline
D. To add manure into it
10 As it passes into food chain, the concentration of DDT
A. Remains same
B. Decreases
C. Increases
D. Unpredictable

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