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The amount of urea to be dissolved in 50...

The amount of urea to be dissolved in 500 c.c. of water `(K_(f) H_(2)O = 1.86K mol^(-1)kg)` to produce a depression of `0.186^(@)C` in the freezing point is :

A

0.3 gm

B

3 gm

C

6 gm

D

9 gm

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The correct Answer is:
B
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