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Online Tests
Chemistry 10th Class English Medium Unit 14 Online Test MCQs With Answers
Question # 1
Ozone id beneficial for us as it:
Choose an answer
absorbs infrared radiations
absorbs ultraviolet radiation
absorbs chlorofluorocarbons
absorbs air pollutants
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Question # 2
The smell of photocopies machine is due to the presence of.
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Chlorine gas
Neon gas
Helium gas
Ozone gas.
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Question # 3
Building and Monuments lose their beauty and shine due to
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U.V radiations
Chlorofluoro carbons
Acid rain
IR radiations.
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Question # 4
Acid rain damages the building it is due to reaction on.
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Calcium sulphate
Calcium nitrate
Calcium carbonate
Calcium oxilat
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Question # 5
Atmosphere has regions.
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One
Two
Three
Four
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Question # 6
The envelope of different gases around the earth is called.
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Atmosphere
Brosphere
Lithosphere
Hydrosphere
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Question # 7
About 99% atmosphere's lies within:
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30 kilometre
35 kilometre
15kilometre
11 kilometre
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Question # 8
75% atmosphere mass lies in how many kilometers.
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11 km
30 km
50 km
85 km
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Question # 9
About 99% of atmospheric mass lies in.
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35 km
30 km
15 km
16 km
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Question # 10
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 # 11
The gas use by plants to perform photosynthesis.
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O
2
CO
2
N
2
CO
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Question # 12
Infrared radiation emitted by the earth are absorbed by?
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CO
2
,H
2
O
N
2
,O
2
CO
2
,N
2
O
2
,CO
2
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Question # 13
Incinerator reduces solid waste into .
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Ash
Flue gas
Heat
All of them
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