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Online Tests
Chemistry 10th Class English Medium Unit 14 Online Test MCQs With Answers
Question # 1
Ozone is beneficial for us as it absorbs.....................
Choose an answer
Infrared Radiations
Ultraviolet radiations
Chlorofluorocarbons
Air pollutants
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Question # 2
The earth atmosphere is getting hotter because of :
Choose an answer
SO
2
O
3
CO
2
CO
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Question # 3
Infrared radiations emitted by the Earth are absorbed by.
Choose an answer
CO
2
and H
2
O
N
2
and O
2
CO
2
and N
2
O
2
and CO
2
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Question # 4
Which of the following is a poisonous gas.
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Oxygen
Ozone
Nitrogen
Carbon dioxide
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Question # 5
Building are being damaged by acid rain because it attacks.
Choose an answer
Calcium sulphate
Calcium nitrate
Calcium carbonate
Calcium oxalate
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Question # 6
Higher concentration of CO causes.
Choose an answer
Fatique
Headache
Both of them
None of them
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Question # 7
Mesophere extend forms 50 km to:
Choose an answer
50 km
12 km
60 km
85 km
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Question # 8
Which gas acts as a glass wall of a green house?
Choose an answer
Oxygen
Carbon dioxides
sulphur dioxide
Hydrogen
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Question # 9
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 # 10
Almost all aircrafts fly in:
Choose an answer
troposphere
mesosphere
stratosphere
themosphere
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Question # 11
Ozone is beneficial for us as it
Choose an answer
Absorb infrared radiation.
Absorb Ultraviolet radiations.
Absorb Chlorofluorocarbons
Absorb Air pollulant
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Question # 12
What percentage of nitrogen and oxygen is in the atmosphere.
Choose an answer
69%
79%
9%
89%
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Question # 13
The formula of ozone is.
Choose an answer
O
2
O
3
O
CO
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