Chemistry MCQS for Class 10 Chapter 6

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Chemistry MCQS for Class 10


Which of the following is a poisonous gas.
Oxygen
Carbon dioxide
Nitrogen
Ozone

Ozone has a smell
Bitter
Sweat
Rotten egg
None of them

The gas use by plants to perform photosynthesis.
N2
O2
CO2
CO

Which gas acts as a glass wall of a green house?
Hydrogen
sulphur dioxide
Carbon dioxides
Oxygen

The percentage of sun light absorbed by atmospheric gases is.
2%
10%
25%
18%

Atmosphere has regions.
Three
Four
One
Two

The waste products driven out because of the combustion of fossil fuels.
Primary pollutant
None of them
Tertiary pollutant.
Secondary pollutant

Mesophere extend forms 50 km to:
50 km
12 km
60 km
85 km

Which is not a part of flue gas?
H2SO4
Furans
HCl
Dioxins

Cause of global warming is :
CO2 gas
SO2gas
O2gas
NO2gas

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