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For a first order reaction, half life is...

For a first order reaction, half life is found to be `138.6` min, what will be the rate of disappearance after 1 half life if initial concentraion of reactant is 3M?

A

`7.5xx10^(-3)"M min"^(-1)`

B

`(3)/(2)"M sec"^(-1)`

C

5xx10^(-3)"M min"^(-1)`

D

`15xx10^(-3)"M min^(-1)`

Text Solution

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The correct Answer is:
A
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