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JEE Main & Advanced Sample Paper JEE Main - Mock Test - 24

  • question_answer
    In the reaction,\[BrO_{3(aq)}^{-}+5Br_{(aq)}^{-}+6H_{(aq)}^{+}\xrightarrow[{}]{{}}\] \[3Br_{2(aq)}^{{}}+3{{H}_{2}}{{O}_{(l)}}\] the expression of rate of appearance of bromine \[[B{{r}_{2}}]\] to rate of disappearance of bromide ion \[[B{{r}^{-}}]\] is \[3Br_{2(aq)}^{{}}+3{{H}_{2}}{{O}_{(l)}}\]

    A) \[\frac{d[B{{r}_{2}}]}{dt}=-\frac{3}{5}\frac{d[B{{r}^{-}}]}{dt}\]

    B) \[\frac{d[B{{r}_{2}}]}{dt}=-\frac{5}{3}\frac{d[B{{r}^{-}}]}{dt}\]

    C) \[\frac{d[B{{r}_{2}}]}{dt}=\frac{5}{3}\frac{d[B{{r}^{-}}]}{dt}\]

    D) \[\frac{d[B{{r}_{2}}]}{dt}=\frac{3}{5}\frac{d[B{{r}^{-}}]}{dt}\]

    Correct Answer: A

    Solution :

    [a]:\[\frac{1}{3}\frac{d[B{{r}_{2}}]}{dt}=-\frac{1}{5}\frac{d[B{{r}^{-}}]}{dt}\] \[\frac{d[B{{r}_{2}}]}{dt}=-\frac{3}{5}\frac{d[B{{r}^{-}}]}{dt}\]


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