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Punjab Medical Punjab - MET Solved Paper-2009

  • question_answer
    What is the oxidation number of \[Fe\] in\[Fe{{(CO)}_{s}}\]?

    A) \[+3\]                                   

    B) \[zero\]

    C) \[+2\]                                   

    D) \[+5\]

    Correct Answer: B

    Solution :

    Let the oxidation state of\[Fe\]in\[Fe{{(CO)}_{5}}\]is\[x\].                 \[Fe{{(CO)}_{5}}\]               \[x+0\times 5=0\] \[\therefore \]             \[x=0\] In metal carbonyls, oxidation state of metal is always zero.


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