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Two liquids A and B have PA^(@)" and PB^...

Two liquids A and B have `P_A^(@)" and P_B^(@)` in the ratio of 1 : 3 and the ratio of number of moles of A and B in liquid phese are 1 : 3 then mole fraction of 'A' in vapour phase in equilibrium with the solution is equal to :

A

0.1

B

0.2

C

0.5

D

`1.0`

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A
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