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A solution containing 10 g per dm^(3) of...

A solution containing 10 g per `dm^(3)` of urea (molecular mass = 60 g `mol^(-1)`) is isotonic with a 5% solution of a non-volatile solute. The molecular mass of this non-volatile solute is

A

348.9 g/mole

B

34/89 g/mole

C

3489 g/mole

D

3.489 g/mole

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The correct Answer is:
B
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