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Assertion:The vapour pressure of an aque...

Assertion:The vapour pressure of an aqueous solution of sucrose is less than 1.013 bar at 373.15 K
Reason : Vapour pressure of water is 1.013 bar at 373.15 K.

A

If both assertion and reason are true and reason is the correct explanation of assertion

B

If both assertion and reason are true but reason is not the correct explanation of assertion.

C

If assertion is true but reason is false

D

If both assertion and reason are false

Text Solution

Verified by Experts

The correct Answer is:
B
Vapour pressure of solution containing non-volatile solute is less than that of pure solvent.
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Knowledge Check

  • The vapoure pressure of an aqueous solution of glucose is 750 mm of Hg at 373 K. the molality is

    A
    `0.64`
    B
    `0.741`
    C
    `0.68`
    D
    `0.94`

  • The vapour pressure of a dilute aqueous solution of glucose is 750 mmHg at 373 K. The mole fraction of the solute is

    A
    `(1)/(76)`
    B
    `(1)/(7.6)`
    C
    `(1)/(38)`
    D
    `(1)/(10)`

  • The vapour pressure of a dilute aqueous solution of glucose is 750 mm of mercury at 373 K . The mole fraction of solute is :

    A
    `(1)/(10)`
    B
    `(1)/(7.6)`
    C
    `(1)/(35)`
    D
    `(1)/(76)`

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