Chemistry MCQs

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Question 82medium

Air shows the property of

Question 83hard

The most abundant constituent of atmospheric air is :

Question 84hard

The percentage of oxygen in air is approximately

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Question 85hard

The major constituent of air is

Question 86hard

The percentage of Nitrogen in Air is

Question 87hard

Air is said to be saturated when :

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Question 88easy

For extinguishing fire, we use

Question 89easy

Dry powder fire extinguishers contain

Question 90hard

Dry ice is the solid form of :