Question

88. If the rate constant for a first order reaction is k, the time (t) required for the completion of 99% of the reaction is given by[NEET]
(a) t = 6.909/
(b) t = 4.606/k
(C) t = 2.303/k
(d) t = 0.693/k
.
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Answer 1

Answer:

These may work............................

Answer 2

Explanation:

the ans is b) t = 4.606/k

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