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

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

Question # 2

Water pollution is mainly due to

Question # 3

Air pollution is not caused by

Question # 4

Which is not a method for solid waste management

Question # 5

Carbon monoxide is harmful to human beings as it

Question # 6

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

Question # 7

DDT is

Question # 8

Which causes water pollution?

Question # 9

Atomospheric pollutant is

Question # 10

Soil remediation means

Question # 11

Which is not the condition for the formation of smog

Question # 12

Which gasses are produced from landfills

Question # 13

In purification of potable water the coagulant used is

Question # 14

The largest item which is recycled is

Question # 15

Acid rains are produced by

Question # 16

Which one is not a pollutant normally?

Question # 17

Acid rain is due to increase in atmospheric concentration of

Question # 18

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

Question # 19

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

Question # 20

Result of ozone hole is

Question # 21

Sulphur dioxide affects

Question # 22

Oceans cove ______ percent of the surface of the earth

Question # 23

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

Question # 24

Ozone layer of stratosphere requires protection from indiscriminate use of

Question # 25

Exposure to CO results in

Question # 26

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

Question # 27

Water which his considered to be safe for human consumption is known as

Question # 28

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

Question # 29

The region of earth capable of supporting life is

Question # 30

Fungicides are the pesticides which

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ECAT Chemistry Chapter 27 Important MCQ's

Sr.# Question Answer
1 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
2 DDT is
A. Biodegradable pollutant
B. Nondegradable pollutant
C. Not a pollutant
D. An antibiotic
3 As it passes into food chain, the concentration of DDT
A. Remains same
B. Decreases
C. Increases
D. Unpredictable
4 Which of the following is not an air
A. N2
B. N2O
C. NO
D. CO
5 The toxic organic compounds and heavy metals and metalloids results in contamination of
A. Surface water
B. Ground water
C. Both surface and ground water
D. Neither surface nor ground waters
6 Atmosphere of big/metropolitan cities is polluted most by
A. Automobile exhausts
B. Pesticide residue
C. Household waste
D. Radio-active fall out
7 Which gasses are produced from landfills
A. NH3
B. H2S
C. N2
D. All of these
8 The pH of the rain water in areas where acid rain is the cause of pollution may be
A. 6.5
B. 5.6
C. 4.5
D. 2.2
9 To purify water which has mud dissolved in it, A substance which coagulates the suspended particles is used. The coagulant may be
A. Ag+
B. Cu2+
C. Al3+
D. Si4+
10 Chief source of water and soil pollution is
A. Mining
B. Thermal power plant
C. Agro-industry
D. All the above

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