MHT CET 2026 Chemistry question

Which from following solutions in water on complete dissociation exhibits minimum freezing point depression?

(A)0.2 m Potassium chloride
(B)0.1 m Sodium chloride
(C)0.05 m Aluminium phosphateCorrect
(D)0.15 m Magnesium sulphate

Answer: (C)

Solution

Depression in freezing point is a colligative property: , so it depends on the product (total moles of particles per kg of solvent). With complete dissociation: (A) KCl, , ; (B) NaCl, , ; (C) $ → +

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Question ID VK-101609