In a first order reaction, the concentra...

In a first order reaction, the concentration of the reactant is decreased from `1.0 M` to `0.25` M in 20 minute. The rate constant of the reaction would be

A

`10min^-1`

B

`6.931min^-1`

C

`0.6931min^-1`

D

`0.06931min^-1`

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The correct Answer is:

D

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