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Assertion: In A overset(k(1))rarr B over...

Assertion: In `A overset(k_(1))rarr B overset(k_(2))rarr C`
If half-life of `A` is very less as compared to `B`, so the net reaction is `A rarr C` with rate constant `(k_(1) xx k_(2))`
Reason: Slowest step is the rate determining step so `B rarr C` is rate determining step.

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.

Text Solution

Verified by Experts

The correct Answer is:
D
Assertion is false and Reason is true.
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A2Z-CHEMICAL KINETICS-Section B - Assertion Reasoning
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  2. Assertion (A) : If the activation energy of a reaction is zero, temper...

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  3. Assertion: For a reaction A(g) rarr B(g) -r(A) = 2.5 P(A) at 400 K ...

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  4. Assertion: In A overset(k(1))rarr B overset(k(2))rarr C If half-life...

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  5. Assertion: Larger is the activation energy, lesser is the effect of a ...

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  6. Assertion: For a free radical combination, K = A. Reason: E(a) is ze...

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  7. Assertion: Every collision of reactant molecule is not successful. R...

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  8. Assertion: A plot of log-log(dX)/(d t) vs. log(a-X) leads to value of ...

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  9. Assertion: the plots of log t(1//2) vs. log[A](0) gives a straight lin...

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  10. Assertion: Emission of light as result of exposure of P to air in nigh...

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  11. Assertion: In the reaction N(2) + 3H(2) rarr 2NH(3), the rate of react...

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  12. Assertion (A) : The rate constant of a zero order reaction has same un...

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  13. Assertion: In a zero order reaction, if concentration of the reactant ...

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  14. Assertion (A) : The rate constant of a pseudo unimolecular reaction ha...

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  15. Assertion: 50% of reaction is completed in 50 sec, therefore, 75% of t...

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  16. Assertion: For a first order reaction, the concentration of the reacta...

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  17. Assertion: Temperature coefficients of most of the reactions lies betw...

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  18. Assertion: The molecularity of the reaction H(2) + Br(2) rarr 2HBr is ...

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  19. Assertion: For the reaction RCl + NAOH(aq) rarr ROH + NACl, the rate o...

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  20. Assertion: According to transition state theory, for the formation of ...

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