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JEE Main & Advanced Chemistry Redox Reactions / रेडॉक्स अभिक्रियाएँ Question Bank Oxidation number and Oxidation state

  • question_answer
    Oxidation number of \[Mn\] in \[{{K}_{2}}Mn{{O}_{4}}\] and \[MnS{{O}_{4}}\] are respectively [CPMT 1997]

    A)                 + 7, + 2 

    B)                 + 6, + 2

    C)                 + 5, + 2 

    D)                 + 2, + 6

    Correct Answer: B

    Solution :

           \[{{K}_{2}}\overset{*}{\mathop{M}}\,n{{O}_{4}}\]             \[\overset{*}{\mathop{M}}\,nS{{O}_{4}}\]            \[2+x-8=0\]                           \[x+6-8=0\]                                 \[x=+6\]               \[x=+\,2\].


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