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AP EAMCET · Chemistry · Solutions

The depression in freezing point of solution of molality \(0.01 \mathrm{~mol} \mathrm{~kg}^{-1}\) is highest with respect to which of the solvent? (Whose \(K_f\) is given in brackets)

  1. A Water (1.86)
  2. B Benzene (5.12)
  3. C Carbon tetrachloride (31.8)
  4. D Cyclohexane (20.0)
Verified Solution

Answer & Solution

Correct Answer

(C) Carbon tetrachloride (31.8)

Step-by-step Solution

Detailed explanation

Given, molality of solution \(=0.01 \mathrm{~mol} \mathrm{~kg}^{-1}\) We know that, \(\Delta T_f=i K_f m\)...(i) (where, symbols have their usual meaning) The van't Hoff factor for all given solvent is 1 as they does not ionise. Therefore, For, Eq (i) \(\Delta T_f \propto K_f\)…