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Chemistry · 2023 · 1 mark
CBSE 2023 · Region 3 · Set 1 · Q15
Assertion (A): Order and molecularity of a reaction are always same. Reason (R): Complex reactions involve a sequence of elementary reactions and the…
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
(D)
Assertion (A) is false, but Reason (R) is true.
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CBSE Class 12 Chemistry past-paper question from the 2023 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.