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Question
Assertion (A): Order of reaction is applicable to elementary as well as complex reactions.
Reason (R): For a complex reaction, molecularity has no meaning.
Options
Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).
Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of Assertion (A).
Assertion (A) is true, but Reason (R) is false.
Assertion (A) is false, but Reason (R) is true.
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Solution
Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of Assertion (A).
Explanation:
The order of reaction applies to both simple and complex reactions. A complicated reaction is composed of numerous elementary reactions. The number of molecules participating in each elementary reaction may differ, implying that the molecularity of each step may differ. As a result, discussing the molecularity of the total complex reaction is pointless.
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