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Which one of the following aqueous solut...

Which one of the following aqueous solution will have the lowest freezing point?

A

`0.1m` urea

B

`0.1m` sucrose

C

`0.1m CH_(3)COOH`

D

`0.1m CaCI_(2)`

Text Solution

Verified by Experts

`DeltaT_(f) = ixx K_(f) xx m`
Here `K_(f)` and m are same for all solutions
`:. Delta T_(f) prop i`
Lowest f.p means maximum
`Delta T_(f) rArr` maximum i
i is maximum (3) for `CaCI_(2)`
`CaCI_(2) overset("water")hArr Ca^(2+) + 2CI^(-)`
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