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The vapour pressure of pure liquid solve...

The vapour pressure of pure liquid solvent A is `0.80`atm.When a non volatile substances B is added to the solvent, its vapour pressure drops to `0.60`atm. Mole fraction of the components B in the solution is:

A

`0.50`

B

`0.25`

C

`0.75`

D

`0.40`

Text Solution

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The correct Answer is:
B
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