CBSE 2026 · Region 1 · Set 3 · Q2 · 1 mark
Which of the following is the correct expression of $\displaystyle \mathrm{K}_{\mathrm{f}}$ which depends upon the nature of solvent?
Official answer
From CBSE’s own marking scheme for this paper.
(D)
$\displaystyle \mathrm{K}_{\mathrm{f}}=\frac{\mathrm{R} \times \mathrm{M}_{1} \times \mathrm{T}_{\mathrm{f}}^{2}}{1000 \times \Delta_{\text {fus }} \mathrm{H}}$
SolutionsColligative Properties and Determination of Molar MassRemembermcqmedium
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CBSE Class 12 Chemistry past-paper question from the 2026board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.