Question

is air is a mixture element of a compound justify your answer​

Answer 1

Air is a mixture and not a compound because of following reasons: Air can be separated into its constituents such as oxygen, nitrogen etc. by fractional distillation of liquid air.Air has a variable composition because at different places different amount of gases are present in air.

Answer 2

Air is considered as a mixture because it exhibits following properties:

(1).Each component present in air retains its properties.

(2).Each component can be separated by simple physical processes.

(3).The components do not have any fixed proportion. All gases are present in different amount. Example, in greener area—more oxygen and water vapour is present; near industrial area—air consists of lot of impurities and smoke suspended in it.