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AIIMS AIIMS Solved Paper-2004

  • question_answer
    The rate constant k, for the reaction \[KMn{{O}_{4}},\] is  \[{{H}_{2}}{{O}_{2}}\]. Which equation given below describes the change of \[1/2\] with time? \[3/2\]and \[5/2\] correspond to concentration of \[7/2\] initially and at timer.

    A) \[N_{3}^{-}\]

    B) \[+1\]

    C) \[{{N}_{2}}O\]

    D) In \[[Co{{(N{{H}_{3}})}_{3}}C{{l}_{3}}]\]

    Correct Answer: D

    Solution :

    From the unit of rate constant \[B{{r}_{2}}+Fe\] it is clear that the reaction is of first order. For 1st order reaction \[{{A}_{e}}X+KCN\] or    \[ArN_{2}^{+}{{X}^{-}}+CuCN\] \[k\propto \,\frac{1}{t}\] so, \[ArCON{{H}_{2}}+SOC{{l}_{2}}\]


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