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DUMET Medical DUMET Medical Solved Paper-2007

  • question_answer
    For the reaction between \[KMn{{O}_{4}}\] and \[{{H}_{2}}{{O}_{2}}\]the number of electrons transferred per mol of \[{{H}_{2}}{{O}_{2}}\] are

    A)  one           

    B)  two

    C)  three          

    D)  four

    Correct Answer: C

    Solution :

    In neutral medium. \[\underbrace{2K\overset{+7}{\mathop{Mn}}\,{{O}_{4}}+{{H}_{2}}{{O}_{2}}\xrightarrow{{}}2KOH+2\overset{+4}{\mathop{Mn}}\,{{O}_{2}}}_{3\text{ }electrons\text{ }change}+2{{O}_{2}}\] Three electron transferred per mol of \[{{H}_{2}}{{O}_{2}}\].


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