CBSE 2023 · Region 3 · Set 1 · Q15 · 1 mark
Assertion (A) : Order and molecularity of a reaction are always same. Reason $\displaystyle (R)$ : Complex reactions involve a sequence of elementary reactions and the slowest step is rate determining.
Official answer
From CBSE’s own marking scheme for this paper.
(D)
Assertion (A) is false, but Reason (R) is true.
Chemical KineticsFactors Influencing Rate of a ReactionAnalyseassertion_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.