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Depression of freezing point of which of...

Depression of freezing point of which of the following solutions does represent the cryoscopic constant of water?

A

`6%` by mass of urea in aqueous solution

B

`100g` of aqueous solution containing `18g` of glucose

C

`59g` of aqueous solution containing `9g` of glucose

D

`1M KCl` solution in water.

Text Solution

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The correct Answer is:
3
Cryoscopic constant `K_(f)=DeltaT_(f)` of solution having until molality of normal solutes
Molality of glucose solution in `(3)=(9xx1000)/((59-9)xx180)=1`
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