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The freezing point (in .^(@)C) of a solu...

The freezing point (in `.^(@)C)` of a solution containing `0.1 g` of `K_(3)[Fe(CN)_(6)]` (Mol.wt. 329) in 100 g of water `(K_(f) = 1.86 K kg mol^(-1))` is

A

`-2.3xx10^(-2)`

B

`-5.7xx10^(-2)`

C

`-5.7xx10^(-3)`

D

`-1.2xx10^(-2)`

Text Solution

Verified by Experts

The correct Answer is:
A
`DeltaT_(f)=4xx(0.1)/(329)xx(1000)/(100)xx1.86=2.26xx10^(-2)`
`K_(3)[Fe(CN)_(6)]:.i=4`
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