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If k for a first order reaction is 5.48 ...

If k for a first order reaction is `5.48 xx 10 ^(-14) s ^(-1),` its two third life is :

A

`2. 01 xx 10 ^(13) s`

B

`7.86 xx 10 ^(11) s `

C

`2. 01 xx 10 ^(11) s`

D

`7.86 xx 10 ^(13) s`

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The correct Answer is:
A
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