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The vapour pressure of an aqueous soluti...

The vapour pressure of an aqueous solution of sucrose at 373 K is found to be 750 mm Hg. The molality of the solution at the same temperature will be :

A

0.26

B

0.73

C

0.74

D

0.039

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Knowledge Check

  • The relative lowering of vapour pressure of an aqueous solution containing a non-volatile solute is 0.0125. The molality of the solution is

    A
    0.7
    B
    0.3
    C
    0.125
    D
    0.07

  • In acidic medium hydrolysis of dilute aqueous solution of sucrose is -

    A
    unimolecular and first order
    B
    bimolecular and second order
    C
    bimolecular & first order
    D
    none of the above

  • At 100^(@)C the vapour pressure of a solution of 6.5 g of a solute in 100 g water is 732 mm. If k_(b) = 0.5 , the boiling point of this solution will be -

    A
    `101^(@)C`
    B
    `100^(@)C`
    C
    `102^(@)C`
    D
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