Which of the following aqueous solution will ...

CBSE Class 12 Chemistry 2023 Delhi Set 2 Solved Paper

Question : 3 of 12

Marks: +1, -0

Which of the following aqueous solution will have highest boiling point?

$1.0 \mathrm{M} \mathrm{KCl}$
$1.0 \mathrm{M} \mathrm{K}_2\mathrm{SO}_4$
$2.0 \mathrm{M} \mathrm{KCl}$
$2.0 \mathrm{M} \mathrm{K}_2\mathrm{SO}_4$

Solution: 👈: Video Solution

The elevation in boiling point is a colligative property that is changed by adding of impurity

\mathrm{K}_2\mathrm{SO}_4 \rightarrow 2\mathrm{K}^{+}+\mathrm{SO}_4^{2-}

i=3 \text{ (i = vant Hoft factor) }

When higher impurities are present in a solution, the boiling point of solution increases which is directly proportional to molality of the solute and vant Hoff factor of the solution.

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