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Manipal Engineering Manipal Engineering Solved Paper-2010

  • question_answer
    The oxidation state of\[Fe\]in\[F{{e}_{3}}{{O}_{4}}\]is

    A) \[+3\]                   

    B)        \[8/3\]                 

    C) \[+6\]                   

    D)        \[+2\]

    Correct Answer: B

    Solution :

    Let the oxidation state of\[Fe\]in\[F{{e}_{3}}{{O}_{4}}=x\] \[\therefore \]  \[3x+4\times (-2)=0\] or            \[3x-8=0\] \[\therefore \]  \[x=\frac{8}{3}\]


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