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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 is same

B

Vapour pressure of beaker B is highest

C

Vapour pressure of beaker C is highest

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
Vapour pressure of a solution containing non-volatile solute is less than that of the pure solvent . The decrease in vapour pressure depends upon the quantity of non-volatile solute present in it. Hence, vapour pressure of A gt C gt B .
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