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Which of the following 0 . 1 M aqueous solution will have lowest freezing point?

Options

  1. APotassium sulphate
  2. BSodium chloride
  3. CUrea
  4. DGlucose

Correct answer

A. Potassium sulphate

Step-by-step solution

Potassium sulphate K 2 SO 4 ,   i = 3 Sodium chloride NaCl ,   i = 2 Urea, i = 1 Glucose, i = 1 Greater the value of i , greater lowering in freezing point and hence, lower will be the freezing temperature. Therefore, K 2 SO 4 solution has the lowest freezing point.

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