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In three beakers labelled as (A),(B) and...

In three beakers labelled as (A),(B) and (C ) , 100 mL of water, 100 mL of 1 M solution of glucose in water and 100 mL of 0.5 M solution of glucose in water are taken respectively and kept at same temperature .

Which of the following statements is correct ?

A

Vapour pressure in all the three beakers in same

B

Vapour pressure of beaker B is highest

C

Vapour pressure of beaker C is higher

D

Vapour pressure of beaker B is lower than that of C and vapour pressure of beaker C is lower than that of A.

Text Solution

Verified by Experts

The correct Answer is:
d
The vapour pressure of pure solvent is always higher than that of a solution which contains a non-volatile solute. The decrease of lowering in vapour pressure is related to the quantity of non-volatile solte present. Hence, vapour presures follow the order : `AgtCgtB`.
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