Question

Colligative molality $=molality\times Va{n}^{\prime }t$ $Hoff$ $factor$
If true enter 1, if false enter 0.

Answer 1

The Van't Hoff factor is $i=\frac{\text{Observed colligative property of electrolyte solution}}{\text{observed colligative property of non electrolyte solution of same concentration}}\times 100$.
The observed colligative property of non-electrolyte solution of same concentration corresponds to the molality of the solution whereas observed colligative property of electrolyte solution is due to either association or dissociation. It corresponds to colligative molality.
Hence, Colligative molality $=$ molality $\times$ Vant Hoff factor