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The rate of a first order reaction is 1.5 × 10^-2 ~mol ~L^-1 ~min^-1 at 0.5 M concentration of the reactant. The half life of the reaction is:

NEET UG 2004 — Chemistry Physical Chemistry

2004mcqmedium

The rate of a first order reaction is 1.5×1.5 \times1.5× 10−2 mol L−1 min−110^{-2} \mathrm{~mol} \mathrm{~L}^{-1} \mathrm{~min}^{-1}10−2 mol L−1 min−1 at 0.5M0.5 \mathrm{M}0.5M concentration of the reactant. The half life of the reaction is:

Official previous-year question

Held on 30 Apr 2004 · Verified 9 Jul 2026.

Options

  1. A

    0.383 min0.383 \mathrm{~min}0.383 min

  2. B

    23.1 min23.1 \mathrm{~min}23.1 min

  3. C

    8.73 min8.73 \mathrm{~min}8.73 min

  4. D

    7.53 min7.53 \mathrm{~min}7.53 min

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