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AP EAMCET · Chemistry · Solutions

In comparison to a \(0.01 \mathrm{M}\) solution of glucose, the depression in freezing point of a \(0.01 \mathrm{M} \mathrm{MgCl}_2\) solution is (Molecular weight of \(\mathrm{MgCl}_2=95\), molecular weight of glucose \(=180\) ).

  1. A the same
  2. B about twice
  3. C about three times
  4. D about six times
Verified Solution

Answer & Solution

Correct Answer

(C) about three times

Step-by-step Solution

Detailed explanation

\(0.01 \mathrm{M}\) solution of glucose does not ionise while \(0.01 \mathrm{M} \mathrm{MgCl}_2\) solution furnishes 3 ions \(\left(\mathrm{Mg}^{2+}+2 \mathrm{Cl}^{-}\right)\)in the solution, hence the value of colligative property of \(\mathrm{MgCl}_2\) solution is about 3…