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When a solution w g of urea in 1Kg of wa...

When a solution w g of urea in `1`Kg of water is cooled to `-0.372^(@)C,200g`of ice is separated .If `K_(f)`for water is `1.86K Kgmol^(-1)`,w is

A

4.8 g

B

12.0 g

C

9.6 g

D

6.0 g

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The correct Answer is:
C
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