Chemistry MCQS for Class 10
Almost all air crafts fly in which reion?
Thermosphere
Stratosphere
Mesosphere
Troposphere
Normal rain water is:
strongly basic
weakly basic
weakly acidic
strongly acidic
The major constituents of troposphere are:
argon and oxygen
nitrogen and oxygen
carbon dioxide and argon
carbon dioxide and oxygen
Which of the following can be used as a fuel?
Ethanol
Bio-diesel
All of them
Methanol
Which one of the following is not air pollutant.
CO
NO2
O2
CO2
Building are being damaged by acid rain because it attacks.
Calcium carbonate
Calcium sulphate
Calcium nitrate
Calcium oxalate
Global warming causes rising of the sea level. The cause of global warming is.
SO2gas.
O3gas.
NO2gases.
CO2 gas.
The green house effect is proportional to the amount of which gas in air.
N2
All of them
CO2
O2
How many percentage of sunlight is absorbed by atmosphere gases.
24%
18%
30%
12%
Atmospheric region found between 50-58 km from the earthis.
Thermosphere
Mesophere
Thermosphere
Stratosphere
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