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10th Class Chemistry Chapter 14 The Atmosphere English Medium KPK Boards Online Mcqs MCQs With Answers
Question # 1
Atmosphere is divided into;
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3 regions
4 regions
5 regions
6 regions
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Question # 2
Which one of the following is not air pollutant.
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CO
2
CO
NO
2
O
2
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Question # 3
The major constituents of troposphere are:
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carbon dioxide and argon
nitrogen and oxygen
argon and oxygen
carbon dioxide and oxygen
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Question # 4
Which one of the following gas has greater retaining capacity?
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O
2
N
2
CO
CO
2
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Question # 5
Which pollutant is not found in car exhaust gases?
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CO
O
3
NO
2
SO
3
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Question # 6
Forest fires and burning of wood emit.
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CO
2
NO
2
SO
2
Cl
2
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Question # 7
By the increase in the concentration of CO
2
in air.
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Decrease in heat energy
Increase in heat energy.
Heat energy remains same
None of them
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Question # 8
Ozone layer is not found is
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Upper stratosphere
Mid stratosphere
Lower stratosphere
All of them
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Question # 9
The recombination of O and O
2
in mid stratosphere is an
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Exothermic reaction
Endothermic reaction
Heat absorbing process
None of these
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Question # 10
The percentage of SO
2
released by the combustion of coal and petroleum product.
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40%
60%
70%
80%
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Question # 11
The pH of water containing CO
2
is
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4-6
5.6-6
6-7
7-8
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Question # 12
The process by which atmospheric nitrogen is turned into nitrates in the soil is called.
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Nitration
Fixing
Oxidation
Reduction
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Question # 13
Depending upon temperature variation, atmosphere ins divided into how many regions?
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1
2
3
4
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