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in a first order reaction , A to B, ...

in a first order reaction , `A to B,` if k is rate constant and intital concentration of the reactant A is 0.5 M . Then the half - life is

A

`(ln2)/(k)`

B

`(0.693)/(0.5k)`

C

`(log2)/(k)`

D

`(log2)/( k sqrt(0.5))`

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The correct Answer is:
A
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