Which of the following solutions shows maximum depression in freezing point?

Options

A. `0.5 M Li_(2)SO`
B. 1 M NaCl
C. `0.5 M Al_(2) (SO_(4))_(2)`
D. `0.5 M BaCl_(2)`

Answer

C

Explanation

`Al_(2)(SO_(4)) hArr 2Al^(3+) + 3SO_(4)^(2-)`
It has maximum concentration of particle and hence maximum depression in freezeing point.