Chemistry Question from JEE Main 2023 · 25 January, Shift 2

The number of pairs of the solution having the same value of osmotic pressure from the following is: (Assume $100\%$ ionization)

A. $0.500 \, \text{M}$ $\mathrm{C_2H_5OH}$ $\text{(aq)}$ and $0.25 \, \text{M}$ $\mathrm{KBr}$ $\text{(aq)}$

B. $0.100 \, \text{M}$ $\mathrm{K_4[Fe(CN)_6]}$ $\text{(aq)}$ and $0.100 \, \text{M}$ $\mathrm{FeSO_4(NH_4)_2SO_4}$ $\text{(aq)}$

C. $0.05 \, \text{M}$ $\mathrm{K_4[Fe(CN)_6]}$ $\text{(aq)}$ and $0.25 \, \text{M}$ $\mathrm{NaCl}$ $\text{(aq)}$

D. $0.15 \, \text{M}$ $\mathrm{NaCl}$ $\text{(aq)}$ and $0.1 \, \text{M}$ $\mathrm{BaCl_2}$ $\text{(aq)}$

E. $0.02 \, \text{M}$ $\mathrm{KCl}$ $\mathrm{MgCl_2.6H_2O}$ $\text{(aq)}$ and $0.05 \, \text{M}$ $\mathrm{KCl}$ $\text{(aq)}$