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The half-life period of a first order re...

The half-life period of a first order rection having rate constant `k=0.231xx10^(-10)s^(-1)` will be

A

`32xx10^(10)s`

B

`2xx10^(10)s`

C

`3xx10^(10)s`

D

`2xx10^(-10)s`

Text Solution

Verified by Experts

The correct Answer is:
B
The half-life of a first order reaction is
`t_(1//2)=(0.693)/(k)`
`k=0.231xx10^(-10)s^(-1)`
So, `t_(1//2)=(0.693)/(0.231xx10^(-10))`
`rArrt_(1//2)=3xx10^(10)s`
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