Maximum osmotic pressure will be shown by which of the following solution (all 90% ionized) — Solutions and Colligative Properties Chemistry Question

💡 Solution & Explanation

With α = 0.90: $AlCl_3$ (n=4): i = 1 + 3*0.9 = 3.7; BaCl2 (n=3): i = 2.8; $NaCl$ (n=2): i = 1.9; sugar: i = 1. $AlCl_3$ has the largest i, hence maximum osmotic pressure.