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MHT CET2009ChemistrySolutions

Maximum depression in freezing point is caused by

Options

  1. Apotassium chloride
  2. Bsodium sulphate
  3. Cmagnesium sulphate
  4. Dmagnesium carbonate

Correct answer

B. sodium sulphate

Step-by-step solution

Depression in freezing point is a colligative property, so depends upon the number of particles. Among, potassium chloride (KCl), sodium sulphate ( Na ₂ SO ₄ ), magnesium sulphate ( MgSO ₄ ) and magnesium carbonate ( MgCO ₃ ), Na ₂ SO ₄ produces maximum number of particles. Na ₂ SO ₄ 2 Na ⁺+ SO ₄²⁻ _ 3 particles Thus, it causes maximum depression in freezing point.

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