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The vapour pressure of water at room tem...

The vapour pressure of water at room temperature is lowered by `5%` by dissolving a solute in it , then the approximately molality of solution is :

A

2

B

1

C

4

D

3

Text Solution

Verified by Experts

The correct Answer is:
D
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Knowledge Check

  • The vapour pressure of water at room temperature is lowered by 5% by dissolving a solute in it. What is approximate molality of solution:

    A
    (a) `2`
    B
    (b) `1`
    C
    (c ) `4`
    D
    (d) `3`

  • The vapour pressure of water at room temperature is 30 mm of Hg. If the mole fraction of the water is 0.9, the vapour pressure of the solution will be :

    A
    30 mm of Hg
    B
    24 mm of Hg
    C
    21 mm of Hg
    D
    27 mm of Hg

  • The vapour pressure of water at room temperature is 30 mm of Hg. If the mole fraction of water in a solution of non volatile solute is 0.9, the vapour pressure of the solution will be :-

    A
    30mm of Hg
    B
    24 mm of Hg
    C
    21 mm of Hg
    D
    27 mm of Hg

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