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

In incinerating the waste is burnt at

Question # 3

Pollution is

Question # 4

Pick up the correct statement

Question # 5

In purification of potable water the coagulant used is

Question # 6

Ozone depletion in stratosphere shall result in

Question # 7

UV radiations bring about

Question # 8

Which factor is helping to reduce the environmental pollution

Question # 9

Which gas is not a constituent of atmosphere

Question # 10

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

Question # 11

Acid rain is due to increase in atmospheric concentration of

Question # 12

NO and NO2gases in atmosphere are represented by

Question # 13

Chromium (VI) is highly toxic and can cause

Question # 14

Sulphur dioxide affects

Question # 15

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

Question # 16

Soil salinity can be measured by

Question # 17

Polycyolic aromatic hydrocarbons are taught to be

Question # 18

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

Question # 19

Photochemical smog is caused by

Question # 20

Depletion of ozone layer is due to

Question # 21

Most hazardous metal pollutant of automobile exhaust is

Question # 22

Which is not the condition for the formation of smog

Question # 23

Which of the following human activities are contaminating surface and ground waters

Question # 24

Chromium (VI) is highly toxic and can cause

Question # 25

Which is not a method for solid waste management

Question # 26

Carbon monoxide is harmful to human beings as it

Question # 27

Soil remediation means

Question # 28

Minamata disease is due to pollution of

Question # 29

Domestic waste mostly constitutes

Question # 30

SO2Makes ______ acid rains

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ECAT Chemistry Chapter 27 Important MCQ's

Sr.# Question Answer
1 Which is not the condition for the formation of smog
A. There must be sufficient NO gas
B. There must be sunlight to help photo chemical reaction to take place
C. Air must be blowing swiftly
D. There must be SO2in the air
2 The amount of Si in the lithosphere is about
A. 27.72%
B. 30.35%
C. 35.30%
D. 40.21%
3 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
4 In water the most important oxidizing agent is dissolved molecular oxygen which ranges from
A. 2 - 4 ppm
B. 4 - 6 ppm
C. 2 - 5 ppm
D. 4 - 8 ppm
5 Which gasses are produced from landfills
A. NH3
B. H2S
C. N2
D. All of these
6 A pollutant affects
A. Human health
B. Quality of life
C. Functioning of ecosystem
D. All of these
7 Increased asthmatic attacks in certain seasons are related to
A. Inhalation of seasonal pollen
B. Eating of seasonal vegetables
C. Low temperature
D. Wet and dry environment
8 In the atmosphere, O2is about
A. 10%
B. 15%
C. 21%
D. 25%
9 The region of earth capable of supporting life is
A. Hydrosphere
B. Lithosphere
C. Biosphere
D. Atmosphere
10 Contamination of Hg comes into surface water from chlor industrial wastes. Why is Hg toxic
A. It attaches to sulphur of the disulphide link
B. Hg is a heavy metal
C. Hg is liquid at room temperature
D. Hg is non reactive chemically

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