For the first order reaction, half life is \( 14 \mathrm{sec} \). T...

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For the first order reaction, half life is \( 14 \mathrm{sec} \). The time required for the initial concentration to reduce to \( 1 / 8^{\text {th }} \) of its value is
(A) \( 28 \mathrm{~s} \)
(B) \( 42 \mathrm{~s} \)
(C) \( (14)^{2} \mathrm{~s} \)
(D) \( 14 \mathrm{~s} \)
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