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Half-life period of a first-order reaction is 1386 seconds. The specific rate constant of the reaction is :

NEET UG 2009 — Chemistry Physical Chemistry

2009mcqeasy

Half-life period of a first-order reaction is 1386 seconds. The specific rate constant of the reaction is :

Official previous-year question

Held on 30 Apr 2009 · Verified 9 Jul 2026.

Options

  1. A

    5.0×10−2 s−15.0 \times 10^{-2} \mathrm{~s}^{-1}5.0×10−2 s−1

  2. B

    5.0×10−3 s−15.0 \times 10^{-3} \mathrm{~s}^{-1}5.0×10−3 s−1

  3. C

    0.5×10−2 s−10.5 \times 10^{-2} \mathrm{~s}^{-1}0.5×10−2 s−1

  4. D

    0.5×10−3 s−10.5 \times 10^{-3} \mathrm{~s}^{-1}0.5×10−3 s−1

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