CBSE 2025 · Region 6 · Set 1 · Q8 · 1 mark
The freezing point of one molal KCl solution, assuming KCl to be completely dissociated in water, is: $\displaystyle \left(\mathrm{K}_{\mathrm{f}}\right.$ for water $\displaystyle \left.=1.86 \mathrm{~K} \mathrm{~kg} \mathrm{~mol}^{-1}\right)$
Official answer
From CBSE’s own marking scheme for this paper.
(A)
-$\displaystyle 3.72$°C
SolutionsColligative Properties and Determination of Molar MassApplymcqeasy
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CBSE Class 12 Chemistry past-paper question from the 2025board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.