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If a mixture of gas has a total pressure...

If a mixture of gas has a total pressure of 100 cm Hg and the partial pressure of nitrogen in the mixture is 25 mm Hg, then the per cent of nitrogen in the mixture is :

A

`4%`

B

`40%`

C

`400%`

D

`2.5%`

Text Solution

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The correct Answer is:
D
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