is air a mixture or compound? give 3 reasons.
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 shows the properties of all the gases present in it. For example: Air supports combustion because of oxygen present in air.
- Air has a variable composition because at different places different amount of gases are present in air.
air is a mixture of gases like carbon dioxide , oxygen , nitrogen and other gases.
a mixture is that which does not have a definite composition of its constituents.similarly air does not have a fixed composition of its constituent gases i.e their composition can vary from place to place