Question

The component which is not present in air is
a. Nitrogen
b. Oxygen
c. Carbon dioxide
d. Chlorine

Answer 1

chlorine {d} options is the correct one!

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Answer 2

The component which is not present in air is Chlorine.

Answer: Option (d)

Explanation:

Air is a mixture of various ‘gases and water vapour’. Its composition changes with altitude and pressure. The natural constituents of air are nitrogen, carbon dioxide, oxygen, traces of rare gases and water vapour. Each component of air is in the gaseous state and can be separated ‘physically’ by the process of liquefaction.

Chlorine on the other hand is not a component of air. It is ‘highly reactive’ and is found mostly on the earth’s crust in the form of ‘ionic chlorides’.