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In a first-order reaction Ararr B, if k ...

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

A

`(log2)/k`

B

`(log2)/(k sqrt0.5)`

C

`(ln 2)/k`

D

`0.693/(0.5k)`

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