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

Acid rains are produced by

Question # 2

Environmental pollution affects

Question # 3

Classical smog occurs in palces of

Question # 4

Which one is not a pollutant normally?

Question # 5

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

Question # 6

UV radiations bring about

Question # 7

Ozone depletion in stratosphere shall result in

Question # 8

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

Question # 9

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 # 10

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

Question # 11

Minamata disease is due to pollution of

Question # 12

Acid rain is caused when various atmospheric gases dissolve in rain water. What are the gases that cause rain water

Question # 13

Which is not a component of environment

Question # 14

Cyclone collector is used for minimizing

Question # 15

Drawback DDT as presticide is

Question # 16

Air pollution is not caused by

Question # 17

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

Question # 18

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

Question # 19

Water pollution is mainly due to

Question # 20

As it passes into food chain, the concentration of DDT

Question # 21

Eutrophication causes reduction in

Question # 22

Chloroflurocarbon releases a chemical harmful to ozone

Question # 23

Swage water is purified by

Question # 24

Ultraviolet radiation from sun causes a reaction that produces

Question # 25

Burning of fossil fuels is the main source of pollution

Question # 26

Which gas is not a constituent of atmosphere

Question # 27

SO2and NO2produce pollution by increasing

Question # 28

In the atmosphere, CO2is about

Question # 29

Which one of the following is not air pollutant gas

Question # 30

Biodegradable pollutant is

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ECAT Chemistry Chapter 27 Important MCQ's

Sr.# Question Answer
1 Fungicides are the pesticides which
A. Control the growth of fungus
B. Kill insects
C. Kill plants
D. Kill herbs
2 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
3 Pollution is
A. Removal of top soill
B. Release of toxic/undesirable materials in enevironment
C. Conversation of energy
D. All the above
4 Polycyolic aromatic hydrocarbons are taught to be
A. Disinfectant
B. Carcinogenic
C. Helpful
D. Reactive
5 Ozone depletion in stratosphere shall result in
A. Forest fires
B. Increased incidence of skin cancer
C. Global warming
D. None of the above
6 Oceans cove ______ percent of the surface of the earth
A. 60
B. 70
C. 80
D. 97
7 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
8 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
9 As it passes into food chain, the concentration of DDT
A. Remains same
B. Decreases
C. Increases
D. Unpredictable
10 Industrial effuents have toxic synthetic organic compounds as well as heavy metals like
A. Pb
B. Cr
C. Hg
D. All of these

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