Air is composed of 78% nitrogen and 21% oxygen. Hence, it is a compound.

True

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False

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Solution

The correct option is B False
Air is a mixture and not a compound because:
1) The constituent particles of air are not chemically combined, in a fixed ratio.
2)The components of air can be separated by a physical method.

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Similar questions

Statement I: Air is a mixture of gases, water vapour and dust particles.

Statement II: Air is composed of only one gas that is nitrogen.

Statement III: Air is composed of two gases, nitrogen and oxygen only.

Which of the above statement is incorrect?

why isn't there 78% oxygen and 21% nitrogen

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