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A first order reaction with respect ...

A first order reaction with respect to the reactact A has a rate constant of ` 6s^(-1)` . If we start with `[A] =0.5` mol / litre , then in what time the concentration of A becomes 0.05 mol / litre

A

`0.384s`

B

`0.214`s

C

`3.84`s

D

0.402s

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The correct Answer is:
A
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