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AP EAMCET · Chemistry · Solutions

Which of the following solution has the highest freezing point?

  1. A \(0.1 \mathrm{~mol} \mathrm{KCl}\) in \(1 \mathrm{~kg}\) water
  2. B \(0.1 \mathrm{~mol} \mathrm{~K}_2 \mathrm{SO}_4\) in \(1 \mathrm{~kg}\) water
  3. C \(0.1 \mathrm{~mol}\) Urea in \(1 \mathrm{~kg}\) water
  4. D \(30 \mathrm{~g}\) of glucose in \(1 \mathrm{~kg}\) water
Verified Solution

Answer & Solution

Correct Answer

(C) \(0.1 \mathrm{~mol}\) Urea in \(1 \mathrm{~kg}\) water

Step-by-step Solution

Detailed explanation

Total no. of species will increases for the dissolution of strong electrohytes, \(\mathrm{KCl}\) and \(\mathrm{K}_2 \mathrm{SO}_4\). \[ \mathrm{KCl} \rightarrow \mathrm{K}^{+}+\mathrm{Cl}^{-} ; \mathrm{K}_2 \mathrm{SO}_4 \rightarrow 2 \mathrm{~K}^{+}+\mathrm{SO}_4^{2-} \]…