NEET Chemistry Redox Reactions / रेडॉक्स अभिक्रियाएँ NEET PYQ-Redox Reactions

  • question_answer
    Oxidation state of Fe in \[F{{e}_{3}}{{O}_{4}}\]is:                                                          [AIPMT 1999]

    A) \[\frac{3}{2}\]  

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

    C)  \[\frac{5}{4}\] 

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

    Correct Answer: D

    Solution :

    Oxidation state of Fe in \[F{{e}_{3}}{{O}_{4}}\] is:
    \[\overset{x}{\mathop{F}}\,{{e}_{3}}{{\overset{-2}{\mathop{O}}\,}_{4}}\]
    \[3x+(-2\times 4)=0\]
    \[3x=+8\]
    \[x=+\frac{8}{3}\]


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