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The units of rate constant for first order reaction are
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The correct answer is:
$\mathrm{s}^{-1}$
For $n$ th order reaction, the units of rate constant $=\left(\mathrm{mol} \mathrm{L}^{-1}\right)^{1-n} \mathrm{~s}^{-1}$
(where, $n=$ order of reaction $)$
$\therefore$ For Ist order reaction, the units of rate constant $=\left(\mathrm{mol} \mathrm{L}^{-1}\right)^{1-1} \mathrm{~s}^{-1}$
$=\mathrm{s}^{-1}$
(where, $n=$ order of reaction $)$
$\therefore$ For Ist order reaction, the units of rate constant $=\left(\mathrm{mol} \mathrm{L}^{-1}\right)^{1-1} \mathrm{~s}^{-1}$
$=\mathrm{s}^{-1}$
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