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Byju's Answer
Standard XII
Chemistry
Elementary and Complex Reactions
Assertion: A ...
Question

Assertion: A fractional order reaction must be a complex reaction.
Reason: Fractional order of RDS equals to overall order of a complex reaction.

A
Both Assertion and Reason are true and Reason is the correct explanation of Assertion
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B
Both Assertion and Reason are true but Reason is not the correct explanation of Assertion
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C
Assertion is true but Reason is false
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D
Assertion is false but Reason is true
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E
Both Assertion and Reason are false
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Solution

The correct option is B Both Assertion and Reason are true but Reason is not the correct explanation of Assertion
The given assertion is true.
⇒ Only a complex reaction can have a fractional order.
The statement in reason is also true.
⇒ Order of RDS in a complex reaction is the overall order of the reaction.
Here, reason is not the correct explanation of assertion.

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