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

  • question_answer
    Oxidation state of \[Fe\] in \[F{{e}_{3}}{{O}_{4}}\] is [CBSE PMT 1999; AIIMS 2002]

    A)                 \[\frac{3}{2}\]   

    B)                 \[\frac{4}{5}\]

    C)                 \[\frac{5}{4}\]   

    D)                 \[\frac{8}{3}\]

    Correct Answer: D

    Solution :

           \[\overset{*}{\mathop{F}}\,{{e}_{3}}{{O}_{4}}\]            \[3x+(-8)=0\]; \[3x-8=0\]                 \[3x=8\];  \[x=\frac{8}{3}\].


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