What are the major components of air ? Among these , which is the active component and which is the inactive component ? Give any four characteristics of air as a mixture.

Explanation

Major components of air are nitrogen and oxygen. Nitrogen is the inactive component and oxygen is the active component.
Characteristics of air as a mixture is as folloes.
(i) Variable composition of air in different places on earth.
(ii) No net change in energy is involved in the mixing up geses in air.
(iii) No definite boiling point for liquid air.
(iv) Separation of air into various components can be done by physical methods.
(v) The properties of different gases are retained in the air.
(vi) Air has no definite chemical formula.
(vii) Air does not exhibit definite chemical properties of its own.