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10th Class Chemistry Chapter 14 The Atmosphere English Medium KPK Boards Online Mcqs MCQs With Answers
Question # 1
The solid particle deposit on the filter paper during filtratin is called.
Choose an answer
Precipitates
Residue
Crystals
All of them
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Question # 2
The percentage by volume of nitrogen in dry gas is.
Choose an answer
78.09%
20.94%
0.93%
0.03%
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Question # 3
Cause of global warming is:
Choose an answer
CO
2
gas
SO
2
gas
NO
2
gas
O
2
gas
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Question # 4
ozone depletion (i.e O3--------------> O2 + O) occurs in:
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lower stratosphere
middle stratosphere
upper stratosphere
troposphere
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Question # 5
Which is not a part of flue gas?
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Furans
Dioxins
HCl
H
2
SO
4
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Question # 6
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 # 7
Higher concentration of CO causes.
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Fatique
Headache
Both of them
None of them
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Question # 8
The waste products driven out because of the combustion of fossil fuels.
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Primary pollutant
Secondary pollutant
Tertiary pollutant.
None of them
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Question # 9
The stratosphere layer is at height above the earth's surface.
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0-12 km
12-50 km
50-85 km
65-120 km
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Question # 10
Cause of global warming is :
Choose an answer
CO
2
gas
SO
2
gas
NO
2
gas
O
2
gas
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Question # 11
What gas is the major constituent of troposphere?
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Nitrogen
Oxygen
Hydrogen
Both a and b
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Question # 12
The recombination of O and O
2
in mid stratosphere is an
Choose an answer
Exothermic reaction
Endothermic reaction
Heat absorbing process
None of these
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Question # 13
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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