MEDIUM
6th CBSE
IMPORTANT
Earn 100

The composition of air in terms of percentage of its various components is given.

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Identify the gases present in Z. 

Important Questions on Amazing Air

MEDIUM
6th CBSE
IMPORTANT
How is the balance of oxygen in atmospheric air maintained?
MEDIUM
6th CBSE
IMPORTANT
Both the active component and the inactive components of atmosphere play important roles. Illustrate.
MEDIUM
6th CBSE
IMPORTANT

Gas X is the heaviest component of natural air.

Identify X.

MEDIUM
6th CBSE
IMPORTANT
Gas X is the heaviest component of natural air. Mention the characteristic properties of X pertinent to combustion.
MEDIUM
6th CBSE
IMPORTANT
Though air contains only about 0.03% of carbon dioxide, it is very important component of air. Give reasons.
EASY
6th CBSE
IMPORTANT
What is the observation when air comes in contact with a cool surface?
EASY
6th CBSE
IMPORTANT

Write the chemical formula of the substance taken in the test tube.

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MEDIUM
6th CBSE
IMPORTANT

What is the observation in the test tube? Give reasons.

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