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

Ultraviolet radiation from sun causes a reaction that produces

Question # 2

Carbon monoxide is pollutant as it

Question # 3

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

Question # 4

Acid rains are produced by

Question # 5

DDT is

Question # 6

Soil salinity can be measured by

Question # 7

The region of earth capable of supporting life is

Question # 8

Drained sewage has B.O.D

Question # 9

Fungicides are the pesticides which

Question # 10

Which is not the condition for the formation of smog

Question # 11

SO2Makes ______ acid rains

Question # 12

Biodegradable pollutant is

Question # 13

Chromium (VI) is highly toxic and can cause

Question # 14

Depletion of ozone layer is due to

Question # 15

Carbon monoxide is harmful to human beings as it

Question # 16

Increased asthmatic attacks in certain seasons are related to

Question # 17

Which gas is not a constituent of atmosphere

Question # 18

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

Question # 19

Air pollution is not caused by

Question # 20

Which one is not a pollutant normally?

Question # 21

In incinerating the waste is burnt at

Question # 22

Potable water is considered to be

Question # 23

Result of ozone hole is

Question # 24

Sulphur dioxide affects

Question # 25

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

Question # 26

Minamata disease is due to pollution of

Question # 27

B.O.D is connected with

Question # 28

The largest item which is recycled is

Question # 29

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

Question # 30

The amount of oxygen in the lithosphere is about

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ECAT Chemistry Chapter 27 Important MCQ's

Sr.# Question Answer
1 Ultraviolet radiation from sun causes a reaction that produces
A. Fluorides
B. Carbon monoxide
C. Sulphur dioxide
D. Ozone
2 In incinerating the waste is burnt at
A. 1000°C
B. 100°C
C. 2000°C
D. 1500°C
3 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
4 Which heavy metals do not have any safe limits
A. As
B. Hg
C. Cr
D. All of these
5 Chromium (VI) is highly toxic and can cause
A. Blindness
B. Cancer
C. Liver problems
D. Blood problems
6 Ozone layer of stratosphere requires protection from indiscriminate use of
A. Fungicides, insecticides, bactericides and medicines
B. Aerosols and high flying jets
C. Atomic explosions and industrial wastes
D. Baloons and turbo-prop aeroplanes
7 Air pollution is not caused by
A. Pollen grains
B. Hydroelectric power
C. Industries
D. Automobiles
8 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
A. Iodine
B. Bromine
C. Lead
D. Carbon
9 Pick up the correct statement
A. CO which is major pollutant resulting from the combustion of fuels in automobile plays a major role in photochemical smog
B. Classical smog has an oxidizing character while the phtochemical smog is reducing in character
C. Photochemical smog occurs in day time whereas the classical smog occurs in early morning hours
D. During formation of smog the level of ozone in the atmosphere goes down
10 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

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