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Statement The vapour pressure of 0.45...

Statement The vapour pressure of `0.45` molar urea solution is more than that of `0.45` molar solution of sugar.
Explanation Lowering of vapour pressure is directly proportional to the number of species present in the solution.

A

`S` is correct but `E` is wrong.

B

`S` is wrong but `E` is correct.

C

Both `S` and `E` are correct and `E` is correct explanation of `S`.

D

Both `S` and `E` are correct but `E` is not correct explanation of `S`.

Text Solution

Verified by Experts

The correct Answer is:
B
The vapour pressure of `0.45` molar urea solution is equal to that of `0.45` molar solution of sugar.
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Solutions - Vapour Pressure

Knowledge Check

  • Statement The vapour pressure of 0.1 M sugar solution is more than that of 0.1 M potassium chloride solution. Explanation Lowering of vapour pressure is directly proportional to the number of species present in the solution.

    A
    `S` is correct but `E` is wrong.
    B
    `S` is wrong but `E` is correct.
    C
    Both `S` and `E` are correct and `E` is correct explanation of `S`.
    D
    Both `S` and `E` are correct but `E` is not correct explanation of `S`.

  • This section contains Assertion and Reason type question. Each question have 4 choices (1), (2), (3) and (4), out of which only one is correct Assertion (A) The vapor pressure of 0.1M sugar solution is more than that of 0.1 M potassium chloride solution. Reason (R) Lowering of vapour pressure is directly proportional to the number of species present in the solution.

    A
    Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion
    B
    Both Assertion and Reason are correct but Reason is not the correct explanation of Assertion
    C
    Assertion is correct but Reason is incorrect
    D
    Bothe Assertion and Reason are incorrect

  • The relative lowering in vapour pressure is proportional to the ratio of number of

    A
    solute molecules to solvent molecules
    B
    solvent molecules of solute molecules
    C
    solute molecules to the total number of molecules in solution
    D
    solvent molecules to the total number of molecules in solution

    • Similar Questions

    Explore conceptually related problems

    Statement The boiling point of 0.1 M urea solution is less than that if 0.1M KCl solution. Elevation of boiling point is directly proportional to the number of species present in the solution.

    Assertion (A): Vapour pressure of 0.5 M sugar solution is more than 0.5 M KCl solution.

    The vapour pressure of the solution M is -

    The vapour pressure of the solution M is

    STATEMENT-1 : The frezing point of 0.05 M urea solution is different from that of 0.05 M sodium chloride solution. STATEMENT-2 : The dpression in freezing point is directly proportional to the number of species present in the solution.

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