CBSE 2024 · Region 1 · Set 1 · Q13 · 1 mark
Assertion (A) : When NaCl is added to water a depression in freezing point is observed. Reason $\displaystyle (R)$ : $\displaystyle \mathrm{NaCl}$ undergoes dissociation in water.
Official answer
From CBSE’s own marking scheme for this paper.
(B)
Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A).
SolutionsColligative Properties and Determination of Molar MassUnderstandassertion_reasoneasy
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CBSE Class 12 Chemistry past-paper question from the 2024board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.