Which gas has the highest partial pressure atmosphere?

C O_{2}

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H_{2} O

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O_{2}

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N_{2}

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Solution

The correct option is D $N_{2}$
Air contains 78% Nitrogen.

Mole fraction of nitrogen in the air is greater than the given gases as it is present in a larger amount than other given gases in the atmosphere. Thus it has the highest partial pressure in the atmosphere.

Hence, option D is correct.

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