MHT CET 2025 Chemistry question

Which of the following aqueous solution having same molality exhibits maximum boiling point elevation? (Assume complete dissociation)

(A)KCl
(B)NaCl
(C)Correct
(D)

Answer: (C)

Solution

Boiling point elevation is a colligative property: , so for equal molality it is greatest for the solute with the largest van't Hoff factor . With complete dissociation: $KCl

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Question ID VK-102988