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DUMET Medical DUMET Medical Solved Paper-2009

  • question_answer
    In the redox reaction, \[xKMn{{O}_{4}}+yN{{H}_{3}}\xrightarrow{{}}KN{{O}_{3}}+Mn{{O}_{2}}\]\[+KOH+{{H}_{2}}O\]x and y are

    A)  \[x=4,\,y=6\]    

    B)  \[x=3,\,y=8\]

    C)  \[x=8,\,y=6\]    

    D)  \[x=8,\,y=3\]

    Correct Answer: D

    Solution :

    By hit and trial method, we find that the balanced equation is as follows \[8KMn{{O}_{4}}+3N{{H}_{3}}\xrightarrow{{}}3KN{{O}_{3}}+8Mn{{O}_{2}}\] \[+5KOH+2{{H}_{2}}O\]


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