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CET Karnataka Engineering CET - Karnataka Engineering Solved Paper-2007

  • question_answer
    The oxidation state of iron in \[{{K}_{4}}[Fe{{(CN)}_{6}}]\]is

    A)  1                                            

    B)  4   

    C)  3                                            

    D)  2 

    Correct Answer: D

    Solution :

    Let the oxidation state of iron in\[{{K}_{4}}[Fe{{(CN)}_{6}}]\] is \[x\].                 \[4\,(+1)+x+6\,(-1)=0\]                                 \[4+x-6=0\]                                                 \[x=+2\]


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