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

Which causes water pollution?

Question # 2

Acid rains are produced by

Question # 3

Pick up the correct statement

Question # 4

In purification of potable water the coagulant used is

Question # 5

The normal amount of overhead ozone is about

Question # 6

Atmosphere of big/metropolitan cities is polluted most by

Question # 7

Biodegradable pollutant is

Question # 8

Carbon monoxide is pollutant as it

Question # 9

Polycyolic aromatic hydrocarbons are taught to be

Question # 10

In the atmosphere, O2is about

Question # 11

Which gas is not a constituent of atmosphere

Question # 12

What is the cause of water pollution

Question # 13

Phosphate pollution is caused by

Question # 14

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 # 15

Which one is the most toxic?

Question # 16

NO and NO2gases in atmosphere are represented by

Question # 17

Cyclone collector is used for minimizing

Question # 18

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

Question # 19

Which is not the condition for the formation of smog

Question # 20

Drawback DDT as presticide is

Question # 21

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

Question # 22

Chief air pollutant which is likely to deplete ozone layer

Question # 23

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

Question # 24

Exposure to CO results in

Question # 25

In the atmosphere, CO2is about

Question # 26

Hydrocarbans, SO2, CO, NH3, nitrogen oxides and compounds of fluorine are called

Question # 27

Chloroflurocarbon releases a chemical harmful to ozone

Question # 28

Spraying of DDT produces pollution of

Question # 29

Atomospheric pollutant is

Question # 30

The film forming components of paints are

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ECAT Chemistry Chapter 27 Important MCQ's

Sr.# Question Answer
1 The % of CO2is the atmosphere is
A. 3.0%
B. 0.03%
C. 0.3%
D. 0.5%
2 Photochemical smog is caused by
A. CO
B. CO2
C. O3
D. NO2
3 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
4 Water pollution is mainly due to
A. Sulphure dioxide
B. Carbon dioxide
C. Oxygen
D. Industrial discharges
5 Which factor is helping to reduce the environmental pollution
A. Rapid growth of population
B. Urbanization
C. Industrialization
D. Increase of plantation
6 Polycyolic aromatic hydrocarbons are taught to be
A. Disinfectant
B. Carcinogenic
C. Helpful
D. Reactive
7 Oceans cove ______ percent of the surface of the earth
A. 60
B. 70
C. 80
D. 97
8 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
9 Chromium (VI) is highly toxic and can cause
A. Blindness
B. Cancer
C. Liver problems
D. Blood problems
10 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

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