Multiple choice Which of the following aqueous solutions has the highest boiling point? 2.0 M KOH 2.0 M NaOH 2.0 M K2SO4 2.0 M KBr 2.0 M NaNO3 Reveal answer Fill a bubble to check yourself C Correct answer Explanation Correct answer. More the van’t Hoff factor, more is the boiling point.