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An aqueous solution containing an ionic ...

An aqueous solution containing an ionic salt having molality equal to `0.19` freezes at `-0.704^(@)C`. The Van't Hoff factor of the ionic salt is (`K_(f)` for water=`1.86 K m^(-1)`)

A

3

B

2

C

4

D

5

Text Solution

Verified by Experts

The correct Answer is:
B
`DeltaT_(f)=iK_(f)m rArr 0.704 = I xx 1.86 xx 0.19 rArr i=2`
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