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Atmosphere

The compositi...

Question

The composition of Oxygen, Argon and Nitrogen in the atmosphere is in the ratio of –

A

None of the options

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B

21%, 0.9% and 78% respectively

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C

0.9%, 21% and 78% respectively

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D

21%, 78% and 0.9% respectively

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Solution

The correct option is B
21%, 0.9% and 78% respectively

21%, 0.9% and 78% respectively

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Q. 1. The composition of nitrogen and oxygen in the atmosphere is 78% and 21% respectively.

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

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