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

When chlorofluoro carbon are subjected to U.V. they form

Question # 2

Which heavy metals do not have any safe limits

Question # 3

Ecology is a science of environment and deals specially with

Question # 4

CFCs destroy ozone layer. How many ozone molecule a chlorine free radical can destroy

Question # 5

Chromium (VI) is highly toxic and can cause

Question # 6

In Antarctica ozone depletion is due to the formation of following compound

Question # 7

Pick up the correct statement

Question # 8

Domestic waste mostly constitutes

Question # 9

Which is not the condition for the formation of smog

Question # 10

In incinerating the waste is burnt at

Question # 11

B.O.D is connected with

Question # 12

What is the cause of water pollution

Question # 13

Swage water is purified by

Question # 14

Minamata disease is due to pollution of

Question # 15

The region of earth capable of supporting life is

Question # 16

In the atmosphere, O2is about

Question # 17

Ecosystem is a smaller unit of

Question # 18

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

Question # 19

Eutrophication causes reduction in

Question # 20

Result of ozone hole is

Question # 21

Cyclone collector is used for minimizing

Question # 22

Air pollution is not caused by

Question # 23

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

Question # 24

Soil remediation means

Question # 25

Which of the following forms a toxic substance in blood by combing with hemoglobin?

Question # 26

Pollution is

Question # 27

Soil salinity can be measured by

Question # 28

Which is not the affect of polluted air on environment

Question # 29

Chromium (VI) is highly toxic and can cause

Question # 30

SO2Makes ______ acid rains

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ECAT Chemistry Chapter 27 Important MCQ's

Sr.# Question Answer
1 In Antarctica ozone depletion is due to the formation of following compound
A. Acrolein
B. Peroxy acetyl nitrate
C. SO2and SO3
D. Chlorine nitrate
2 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
3 DDT is
A. Biodegradable pollutant
B. Nondegradable pollutant
C. Not a pollutant
D. An antibiotic
4 Photochemical smog is caused by
A. CO
B. CO2
C. O3
D. NO2
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 A pollutant affects
A. Human health
B. Quality of life
C. Functioning of ecosystem
D. All of these
7 Pollution is
A. Removal of top soill
B. Release of toxic/undesirable materials in enevironment
C. Conversation of energy
D. All the above
8 Which is not a component of environment
A. Biosphere
B. Lithospahre
C. Hydrosphere
D. None of these
9 Shahi Qilla may be destroyed by
A. Flood in Ravi
B. Temperature mediated spoilage of marble
C. Air pollutants from Lahore chemical industries
D. All the above
10 Which one of the following is not air pollutant gas
A. CO
B. CO2
C. NO
D. SO2

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