The freezing point of one molal KCl solution, assuming KCl to be completely dissociated in water, is : (Kf for water = 1.86 K kg mol -1)

The freezing point of one molal KCl solution, assuming KCl to be completely dissociated in water, is : (Kf for water = 1.86 K kg mol -1)
(A) 3-72°C
(B) +3-72°C
(C) -1-86°C
(D) +2-72°C

Correct Answer : Option (A) 3-72°C

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