Solution:
\(1 \mathrm{M} \mathrm{AlCl}_{3}\) solution will have the highest boiling point is because colligative properties such as elevation in boiling point is directly proportional to number of particles in solutions and \(\mathrm{AlCl}_{3}\) produces highest number of particles or ions. (i.e., \(A l C l_{3}=1+3=4\) ).