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In a first order of reaction the reactin...

In a first order of reaction the reacting substance has half-life period of ten minutes. What fraction of the substance will be left after an hour the raction has occurred ?

A

`(1)/(6)` of initial concentration

B

`(1)/(64)` of initial concentration

C

`(1)/(12)` of initial concentration

D

`(1)/(32)` of initial concentration

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The correct Answer is:
B
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