For a dilute solution of $K_3[Fe(CN)_6]$,the van't Hoff factor $(i)$ is ..... [assuming $100\%$ ionization]

For $0.01 \, M$ solutions of urea, common salt $(NaCl)$, and $Na_2SO_4$, the ratio of depression of freezing point is:

Which of the following solutions exhibits the minimum boiling point elevation under identical conditions? (Assume complete dissociation)

If a $0.25 \, m$ solution of electrolyte $X_3Y_2$ undergoes $50 \%$ ionization,the van't Hoff factor will be ...... .

Two solutions of $KNO_3$ and $CH_3COOH$ are prepared separately. Molarity of both is $0.1 \ M$ and osmotic pressures are $P_1$ and $P_2$ respectively. The correct relationship between the osmotic pressures is :-

Which one has the highest boiling point?