CBSE 2023 · Region 2 · Set 3 · Q15 · 1 mark
Assertion (A) : The enthalpy of mixing $\displaystyle \Delta_{\text {mix }} \mathrm{H}$ is equal to zero for an ideal solution.
Reason (R) : For an ideal solution the interaction between solute and solvent molecules is stronger than the interactions between solute- solute or solvent-solvent molecules.
Official answer
From CBSE’s own marking scheme for this paper.
(C)
(A) is true, but (R) is false.
SolutionsIdeal and Non-ideal SolutionsUnderstandassertion_reasonmedium
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CBSE Class 12 Chemistry past-paper question from the 2023board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.