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

One of the environmental problem is the formation of oil slicks when oil is spilled from tankers in sea water. Which treatment is suitable to remove oil slicks

Question # 2

A pollutant affects

Question # 3

Chloroflurocarbon releases a chemical harmful to ozone

Question # 4

In the atmosphere, CO2is about

Question # 5

Result of ozone hole is

Question # 6

Which one is the most toxic?

Question # 7

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

Question # 8

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

Question # 9

Which of the following is not an air

Question # 10

Eutrophication causes reduction in

Question # 11

Cyclone collector is used for minimizing

Question # 12

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

Question # 13

UV radiations bring about

Question # 14

Soil remediation means

Question # 15

Air pollution is not caused by

Question # 16

The amount of Si in the lithosphere is about

Question # 17

The amount of oxygen in the lithosphere is about

Question # 18

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

Question # 19

The largest item which is recycled is

Question # 20

Domestic waste mostly constitutes

Question # 21

Which causes water pollution?

Question # 22

The film forming components of paints are

Question # 23

Ozone layer of stratosphere requires protection from indiscriminate use of

Question # 24

Acid rains are produced by

Question # 25

Acid rain is due to increase in atmospheric concentration of

Question # 26

Which one is not a pollutant normally?

Question # 27

Swage water is purified by

Question # 28

NO and NO2gases in atmosphere are represented by

Question # 29

Chlorofluorocarbon, CF2CI2, plays an effective role in removing O3(ozone) in the stratosphere. Which reaction does not cause the depletion of ozone

Question # 30

What is the cause of water pollution

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ECAT Chemistry Chapter 27 Important MCQ's

Sr.# Question Answer
1 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
2 Which gasses are produced from landfills
A. NH3
B. H2S
C. N2
D. All of these
3 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
4 Ozone hole is maximum over
A. Europe
B. Antarctica
C. Asia
D. Africa
5 CFCs destroy ozone layer. How many ozone molecule a chlorine free radical can destroy
A. 10,000
B. 20,000
C. 100,000
D. 50,000
6 Chlorofluorocarbon, CF2CI2, plays an effective role in removing O3(ozone) in the stratosphere. Which reaction does not cause the depletion of ozone
7 Increasing skin cancer and high mutation rate are due to
A. Acid rain
B. Ozone depletion
C. CO pollution
D. CO2Pollution
8 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
9 Which one of the following is not air pollutant gas
A. CO
B. CO2
C. NO
D. SO2
10 The amount of Si in the lithosphere is about
A. 27.72%
B. 30.35%
C. 35.30%
D. 40.21%

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