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

The region of earth capable of supporting life is

Question # 2

Atmosphere of big/metropolitan cities is polluted most by

Question # 3

Which is not a method for solid waste management

Question # 4

A pollutant affects

Question # 5

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

Question # 6

Soil remediation means

Question # 7

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

Question # 8

Classical smog occurs in palces of

Question # 9

Which one of the following is not air pollutant gas

Question # 10

Ozone layer of stratosphere requires protection from indiscriminate use of

Question # 11

Minamata disease is due to pollution of

Question # 12

The film forming components of paints are

Question # 13

Drawback DDT as presticide is

Question # 14

Carbon monoxide is pollutant as it

Question # 15

Carbon monoxide is harmful to human beings as it

Question # 16

Potable water is considered to be

Question # 17

A single chlorine free radical can destroy how many ozone molecules

Question # 18

Soil salinity can be measured by

Question # 19

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

Question # 20

Swage water is purified by

Question # 21

Which one is the most toxic?

Question # 22

To purify water which has mud dissolved in it, A substance which coagulates the suspended particles is used. The coagulant may be

Question # 23

Biodegradable pollutant is

Question # 24

Chief air pollutant which is likely to deplete ozone layer

Question # 25

The toxic organic compounds and heavy metals and metalloids results in contamination of

Question # 26

Chromium (VI) is highly toxic and can cause

Question # 27

Pollutant of automobile exhausts that affects nervous system/produces mental diseases is

Question # 28

Spraying of DDT produces pollution of

Question # 29

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

Question # 30

Most hazardous metal pollutant of automobile exhaust is

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ECAT Chemistry Chapter 27 Important MCQ's

Sr.# Question Answer
1 Which factor is helping to reduce the environmental pollution
A. Rapid growth of population
B. Urbanization
C. Industrialization
D. Increase of plantation
2 A single chlorine free radical can destroy how many ozone molecules
A. 100
B. 100000
C. 10000
D. 10
3 Increasing skin cancer and high mutation rate are due to
A. Acid rain
B. Ozone depletion
C. CO pollution
D. CO2Pollution
4 Mottling of teeth is due to presence of an element in drinking water
A. Mercury
B. Fluorine
C. Boron
D. Chlorine
5 Sulphur dioxide affects
A. Cell wall
B. Plasmodesmata
C. All membrane systems
D. Nucleus
6 Water which his considered to be safe for human consumption is known as
A. Distilled water
B. Contaminated water
C. Potable water
D. Rain water
7 Ecosystem is a smaller unit of
A. Hydrosphere
B. Lithosphere
C. Biosphere
D. Atmosphere
8 Exposure to CO results in
A. Headache
B. Fatigue
C. Unconsciousness
D. All of these
9 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
10 Which of the following forms a toxic substance in blood by combing with hemoglobin?
A. Carbon dioxide
B. Carbon monoxide
C. Oxygen
D. Methane

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