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Assertion (A) : Elevation in the boiling...

Assertion (A) : Elevation in the boiling point of a solution is directly proportional to the molal concentration of solute.
Reason (R) : A solution boils at the temperature at which its vapour pressure is equal to the atmospheric pressure

A

Both Assertion (A) and Reason (R) are correct statements, and Reason (R) is the correct explanation of the Assertion (A).

B

Both Assertion (A) and Reason (R) are correct statements, but Reason (R) is not the correct explanation of the Assertion (A).

C

Assertion (A) is correct, but Reason (R) is incorrect statement,

D

Assertion (A) is incorrect, but Reason (R) is correct statement.

Text Solution

Verified by Experts

The correct Answer is:
B
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Knowledge Check

  • The osmotic pressure of a solution is directly proportional to

    A
    The molecular concentration of solute
    B
    The absolute temperature at a given concentration
    C
    Van't Hoff Factor
    D
    All of the above.

  • Elevation of boiling point is directly proportional to

    A
    molality of the solution
    B
    depression of freezing point in the same solution
    C
    both of these
    D
    none of these

  • A liquid boils at a temperature at which its saturated vapour pressure becomes

    A
    equal to the atmosphere pressure
    B
    twice the atmospheric pressure
    C
    half the atmospheric pressure
    D
    None of above

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