Chemistry - Liquid Solution Question with Solution | TestHub

Since, osmotic pressure is a colligative property, therefore
Osmotic pressure$\propto$number of solute particle in the solution.($\text{i}$-factor)
$\because$Dissociation of${\text{AlCl}}_{\text{3}}$is maximum and of urea is minimum.
Hence, order of osmotic pressure will be
${\text{AlCl}}_{\text{3}}\text{>}{\text{BaCl}}_{\text{2}}\text{>}\text{Urea}$