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Q. Four solutions of $K_{2}SO_{4}$ with the following concentration $0.1\, M,\, 0.01\, m,\, 0.001\, m$ and $m$ are available. The maximum value of van' t Hoff factor, $i$, corresponds to

AMUAMU 2010Solutions

Solution:

van't Hoff factor, $i \propto \frac{1}{\text { concentration, } C}$
$\therefore 0.0001\, m$ solution has the maximum van't Hoff factor.