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Assertion: Order and molecularity of a r...

Assertion: Order and molecularity of a reaction are always equal.
Reason: Complex reactions take place in steps and slowest step determines the reaction order.

A

If both assertion and reason are correct explanation for assertion.

B

If both assertion and reason are correct but reason is not correct explanation for assertion.

C

If assertion is correct but reason is incorrect.

D

If both assertion and reason are incorrect.

Text Solution

Verified by Experts

The correct Answer is:
C
c) correct reason: Order and molecularity may or may not be equal.
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Knowledge Check

  • A : Order and molecularity of a reaction are always equal R : Complex reactions takes place is steps and fastest step determine the molecularity of reaction.

    A
    If both Assertion & Reason are true and the reason is the correct explanation of the assertion , then mark (1).
    B
    If both Assertion & Reason are true but the reason is not the correct explanation of the assertion , then mark (2).
    C
    If Assertion is true statement but Reason is false, then mark (3).
    D
    If both Assertion and Reason are false statements , then mark (4)

  • Assertion : Complex reaction takes place in different steps and the slowest step determines the rate of reaction. Reason : Order and molecularity of a reaction are always equal.

    A
    If both assertion and reason are true and reason is the correct explanation of assertion.
    B
    If both assertion and reason are true but reason is not the correct explanation of assertion.
    C
    If assertion is true but reason is false.
    D
    If both assertion and reason are false.

  • Assertion: Order of reaction can never be fractional for an elementary reaction. Reason: An elementary reaction takes place by one step mechanism.

    A
    If both assertion and reason are true and the reason is the correct explanation of the assertion.
    B
    If both assertion and reason are true but the reason is not the correct explanation of the assertion.
    C
    If assertion is true but reason is false.
    D
    If assertion is false but reason is true.

    • Similar Questions

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    The molecularity of a complex reaction is always greater than the order of the reaction.

    The reactions taking place in one step is called ............... reactions.

    What is the rate determining step of a reaction ?

    Assertion: The molecularity of the reaction H_(2) + Br_(2) rarr 2HBr is 2 . Reason: The order of the reaction is 3//2 .

    Assertion :- In a multi-step reaction, the molecularity of overall reaction has no significance. Reason :- Molecularity of a reaction is always equal to order of reaction.

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