MHT CET 2025 Chemistry question

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

(A)0.2 m KCl
(B)0.1 m NaCl
(C)1 m
(D)0.05 m Correct

Answer: (D)

Solution

Boiling point elevation is a colligative property: , so for the same solvent compare (effective molality), where is the number of particles per formula unit for complete dissociation. (A) KCl: , . (B) NaCl: , . (C)

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Question ID VK-102090