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In a first-order reaction A rarr B, if K...

In a first-order reaction `A rarr B`, if `K` is the rate constant and initial concentration of the reactant is `0.5 M`, then half-life is

A

`(l n2)/(k)`

B

`(0.693)/(0.5 k)`

C

`(log 2)/(k)`

D

`(log 2)/(k sqrt(0.5))`

Text Solution

Verified by Experts

The correct Answer is:
A
Half life of a first order reaction does not depend upon initial concentration. For a first order reaction.
`t_(1//2)=(l n2)/(k)`.
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