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In acidic medium the rate of reaction between \( \left(\mathrm{BrO}_{3}\right)^{-} \)and \( \mathrm{Br}^{-} \)ions is given by the expression.
\( \mathrm{P} \) \( -\left[\mathrm{d}\left(\mathrm{BrO}_{3}^{-}\right) / \mathrm{dt}\right]=\mathrm{K}\left[\mathrm{BrO}_{3}^{-}\right]\left[\mathrm{Br}^{-}\right]\left[\mathrm{H}^{+}\right]^{2} \) It means :

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(1) Rate constant of overall reaction is \( 4 \mathrm{sec}^{-1} \)
(2) Rate of reaction is independent of the concentration of acid
(3) The changes in \( \mathrm{pH} \) of the solution will not affect the rate
(4) Doubling the concentration of \( \mathrm{H}^{+} \)ions will increase the reaction rate by 4 times.
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