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At 80^@C the vapour pressure of pure liq...

At `80^@C` the vapour pressure of pure liquid 'A' is 520 mm Hg and that of pure liquid 'B' is 1000 mm Hg. If a mixture of solution of 'A' and 'B' boils at `80^@C` and 1 atm prssure, the amount of 'A' in the mixture is (1atm=760mm Hg)

A

50 mol percent

B

52 mol percent

C

34 mol percent

D

48 mol percent

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