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A solution of solute 's' in benzene boil...

A solution of solute 's' in benzene boils at `0.126^(@)` higher than benzene. The molality of the solution is ( `K_(b)` for benzene `= 2.52Km^(-1)`) :

A

2 m

B

0.05 m

C

1 m

D

20 m

Text Solution

Verified by Experts

The correct Answer is:
B
`DeltaT_(b)=K_(b)xx m ` or `m=(DeltaT_(b))/(K_(b))=(0.126)/(2.52)=0.05`.
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