Question

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➡why air is a mixture not a compound....?

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Answer 1

Answer:

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Explanation:

In a Compound :

1-two or more elements are combined chemically.For example-Sugar mixed in water.

2-the elements are present fixed ratio by mass.Foe example -in water(H20) the two elements Hydrogen and Oxygen are combined in the ratio 1:8 by mass .This ratio is always mixed whatever may be the source of water

3-the constituents cannot be separated by physical means.For example -You cannot separated Hydrogen and oxygen present in water by your hands(Can-You?)

4-the constituents lose their identities i.e., a Compound does not show characteristics of the constituting elements.(For example -whereas Hydrogen is combustible and oxygen supports combustion but water extinguished fire)

5-Compounds are always homogeneous i.e. they have the same composition throughout.

Answer 2

Answer:

Air is a mixture and not a compound because of following reasons:

• Air can be separated into its constituents such as oxygen, nitrogen etc. ...

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.