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

Ozone layer of stratosphere requires protection from indiscriminate use of

Question # 2

UV radiations bring about

Question # 3

The amount of oxygen in the lithosphere is about

Question # 4

The normal amount of overhead ozone is about

Question # 5

Burning of fossil fuels is the main source of pollution

Question # 6

Drained sewage has B.O.D

Question # 7

Pick up the correct statement

Question # 8

Exposure to CO results in

Question # 9

Acid rain is due to increase in atmospheric concentration of

Question # 10

Ozone hole is maximum over

Question # 11

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

Question # 12

In the atmosphere, O2is about

Question # 13

Cyclone collector is used for minimizing

Question # 14

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 # 15

Eutrophication causes reduction in

Question # 16

Which is not a method for solid waste management

Question # 17

Ozone depletion in stratosphere shall result in

Question # 18

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

Question # 19

SO2and NO2produce pollution by increasing

Question # 20

Atmosphere of big/metropolitan cities is polluted most by

Question # 21

B.O.D is connected with

Question # 22

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

Question # 23

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

Question # 24

Mottling of teeth is due to presence of an element in drinking water

Question # 25

Biodegradable pollutant is

Question # 26

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

Question # 27

Spraying of DDT produces pollution of

Question # 28

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

Question # 29

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

Question # 30

Water pollution is mainly due to

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ECAT Chemistry Chapter 27 Important MCQ's

Sr.# Question Answer
1 The largest item which is recycled is
A. Newspaper
B. Plastic
C. Aluminium
D. Oil
2 In the atmosphere, CO2is about
A. 0.01%
B. 0.03%
C. 0.05%
D. 0.09%
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 Which gas is not a constituent of atmosphere
A. Xe
B. O3
C. H2
D. F2
5 Phosphate pollution is caused by
A. Weathering of phosphate rocks only
B. Agricultural fertilizers
C. Phosphate rocks and sewage
D. Sewage and agricultural fertilizers
6 Ground and surface waters are contaminated and become polluted due to the human activity. Which human activity will bot cause water pollution
A. Live stock waste
B. Agricultural pesticides
C. Oil breaks and spills
D. All of the above
7 Which of the following is responsible for depletion of the ozone layer in the upper strata of the atmosphere?
A. Fullerences
B. Freons
C. Polyhalogens
D. Ferrocene
8 Chromium (VI) is highly toxic and can cause
A. Blindness
B. Cancer
C. Liver problems
D. Blood problems
9 Ecology is a science of environment and deals specially with
A. Stratosphere
B. Biosphere
C. Lithosphere
D. Hydrosphere
10 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

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