Colligative properties are properties of solution which depends on the number of solute particles in the solution. The value of van't Hoff factor, 'i', for aqueous KCl solution is close to 2, while the value of 'I' for ethanoic acid in benzene is nearly 0.5. Give reasons

Explanation

KCl in aqueous solution undergoes dissociation as KCl`toK^+ +Cl^-`
Thus, the number of particles in solution becomes double and hence van.t Hoff factor .I. for aqueous KCl solution is close to 2. Ethanoic acid in benzene undergoes, association (dimerisation). `therefore` i is nearly