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Elevation in b.p. of an aqueous urea sol...

Elevation in `b.p.` of an aqueous urea solution is `0.52^(@), (K_(b)=0.52^(@) "mol"^(-1)kg)` Hence, mole-fraction of urea in this solution is :

A

`0.982`

B

`0.567`

C

`0.943`

D

`0.018`

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The correct Answer is:
D
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