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 % of CO2is the atmosphere is

Question # 2

The pH range of the acid rain is

Question # 3

Increased asthmatic attacks in certain seasons are related to

Question # 4

The largest item which is recycled is

Question # 5

Most hazardous metal pollutant of automobile exhaust is

Question # 6

Ecology is a science of environment and deals specially with

Question # 7

Carbon monoxide, emitted by automobiles, prevents transport of oxygen in body due

Question # 8

Ultraviolet radiation from sun causes a reaction that produces

Question # 9

DDT is

Question # 10

Ecosystem is a smaller unit of

Question # 11

Eutrophication causes reduction in

Question # 12

Drawback DDT as presticide is

Question # 13

The normal amount of overhead ozone is about

Question # 14

Chloroflurocarbon releases a chemical harmful to ozone

Question # 15

Shahi Qilla may be destroyed by

Question # 16

Which is not a component of environment

Question # 17

Which one is the major reason for pollution in high cities?

Question # 18

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

Question # 19

Spraying of DDT produces pollution of

Question # 20

In water the most important oxidizing agent is dissolved molecular oxygen which ranges from

Question # 21

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

Question # 22

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

Question # 23

Soil salinity can be measured by

Question # 24

Depletion of ozone layer is due to

Question # 25

Domestic waste mostly constitutes

Question # 26

Which is not a method for solid waste management

Question # 27

Which factor is helping to reduce the environmental pollution

Question # 28

A single chlorine free radical can destroy how many ozone molecules

Question # 29

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

Question # 30

Pick up the correct statement

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ECAT Chemistry Chapter 27 Important MCQ's

Sr.# Question Answer
1 A pollutant affects
A. Human health
B. Quality of life
C. Functioning of ecosystem
D. All of these
2 Chromium (VI) is highly toxic and can cause
A. Blindness
B. Cancer
C. Liver problems
D. Blood problems
3 Exposure to CO results in
A. Headache
B. Fatigue
C. Unconsciousness
D. All of these
4 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
5 Which is not the affect of polluted air on environment
A. Acid rain
B. Smog
C. Ozone
D. Global warming
6 Drained sewage has B.O.D
A. More than that of water
B. Less than that of water
C. Equal to that of water
D. None of the above
7 Soil remediation means
A. To make it suitable for cultivation of crops
B. To make it acidic
C. To make it alkeline
D. To add manure into it
8 In Antarctica ozone depletion is due to the formation of following compound
A. Acrolein
B. Peroxy acetyl nitrate
C. SO2and SO3
D. Chlorine nitrate
9 Carbon monoxide, emitted by automobiles, prevents transport of oxygen in body due
A. Combining with oxygen to form carbon dioxide
B. Destruction of hemoglobin
C. Preventing reaction between oxygen and hemoglobin
D. Forming stable compound with hemoglobin
10 UV radiations bring about
A. Skin cancer
B. Mouth cancer
C. Lung cancer
D. Liver cancer

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