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    Vapour pressures of pure liquids 'A' and 'D' at 50°C are 500 mm Hg and 800 mm Hg respective binary solution of 'A' and 'D' boils at 50°C and 700 mm Hg
    Question

    Vapour pressures of pure liquids 'A' and 'D' at 50°C are 500 mm Hg and 800 mm Hg respective binary solution of 'A' and 'D' boils at 50°C and 700 mm Hg pressure. The mole percentage of solution is:

    A.

    33.33 mole percent

    B.

    66.67 mole percent

    C.

    25.75 mole percent

    D.

    75.25 mole percent

    Correct option is B

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