A and B are ideal gases. The molecular w...

A and B are ideal gases. The molecular weights of A and B are in the ratio of 1 : 4. The pressure of a gas mixture containing equal weights of A and B is P atm. What is the partial pressure (in atm) of B in the mixture?

A

`P//5`

B

`P//2`

C

`P//2.5`

D

`3P //4`

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A

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