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A first order reaction is 50% completed ...

A first order reaction is 50% completed in `1.26 xx 10^(14)s`. How much time would it take for 100% completion?

A

`1.26v xx 10^(15) s`

B

`2.52 xx 10^(14) s`

C

`2.52 xx 10^(28) s`

D

infinite

Text Solution

Verified by Experts

The correct Answer is:
D
Whole of the substance never gets consumed because in every half-life, 50% of the substance reacts. Fraction consumed in every half-life is the same but amount of the substance goes on decreasing. Hence, time taken for 100% completion of a reaction is infinite.
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