1.

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

Answer»

`6%` by mass of urea in aqueous solution
`100g` of aqueous solution containing `18g` of glucose
`59G` of aqueous solution containing `9g` of glucose
`1M KCl` solution in WATER.

Solution :CRYOSCOPIC constant `K_(f)=DeltaT_(f)` ofsolution having until MOLALITY of normal solutes
Molality of glucose solution in `(3)=(9xx1000)/((59-9)xx180)=1`


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