Assertion When a solution of non-volatile solute in volatile solvent is distilled, boiling point of the left-over solution increases gradually. Reason Distillationincrease the molality of the left-over 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 wrong.
D
Assertion is wrong but reason is correct.
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The correct Answer is:
A
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For a non-volatile solute
When non-volatile solute is assed to a pure solvent, the:
Vapour pressure of the solution of a non- volatile solute is always __.
Partial pressure of solvent in solution of non-volatile solute is given by equation.
Assertion : Addition of a nonvolatile solute to a volatile solvent increases the boiling point. Reason : Addition of nonvolatile solute results in lowering of vapour pressure.
IIT-JEE PREVIOUS YEAR (CHEMISTRY)-SOLUTIONS AND COLLIGATIVE PROPERTIES-Assertion-Reason Type
