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Assertion (A) When NaCl is added to wate...

Assertion (A) When NaCl is added to water a depression in freezing point is observed.
Reason (R ) The lowering of vapour pressure of a solution causes depression in the freezing point.

A

Assertion and reason both are correct statements and reason is correcft explanation for assertion.

B

Assertion and reason both are correct statements but reason is not correct explanation for assertion.

C

Assertion is correct statement but reason is wrong statement.

D

Assertion and reason both are incorrect statements.

Text Solution

Verified by Experts

The correct Answer is:
a
Asserrtion and reason both are correct and reason is correct explanation of assertion. When NaCl is added to water a depressionin freezing point is observed This is due to lowering of vapour pressur of a solution. Lowering of vapour pressure is observed dut to intermolecuolar interaction of solvent-solute particles.
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Knowledge Check

  • Assertion : When NaCl is added to water, a depression in freezing point is observed. Reason : The lowering of vapour pressure of a solution cuaes depression in the freezing point.

    A
    Assertion and reason both are correct statement and reason is correct explanation for assertion.
    B
    Assertion and reason both are correct statements but reason is not correct explanation for assertion.
    C
    Assertion is correct statement but reason is wrong statement.
    D
    Assertion and reason both are incorrect statements.

  • Assertion : When NaCI is added to water, a depression in freezing point is obseved. Reson : The lowering of vapour pressure of a solution causes depression in the freezing point

    A
    Assertion and reson both are correct statements and reson is sorrect explanation for assertion.
    B
    Assertion and reson both are correct statements but resons is not correct explanation for assertion.
    C
    Assertion and reason both are incorrect statements.
    D
    Assertion is wrong statement but reason is correct statement.

  • Maximum depression in freezing point is caused by

    A
    `Na_(2)SO_(4)`
    B
    NaCl` gtBaCl_(2) gt ` Glucose
    C
    Glucose
    D
    KCl

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    Which of the following aqueous solution will have highest depression in freezing point?

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