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AMU Medical AMU Solved Paper-2002

  • question_answer
    The oxidation number of Cr in \[Cr{{O}_{2}}C{{l}_{2}}\] is

    A)  + 2                                        

    B)  + 3

    C)  + 4                                        

    D)  + 6

    Correct Answer: D

    Solution :

                     Let the oxidation number of Cr in \[Cr{{O}_{2}}C{{l}_{2}}\] is x.                                 \[x+2(-2)+2(-1)=0\]                                                 \[x-4-2=0\]                                                                 \[x-6=0\]                                                                                 \[x=6\] So, the oxidation number of Cr in \[Cr{{O}_{2}}C{{l}_{2}}\] is +6.


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