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JAMIA MILLIA ISLAMIA Jamia Millia Islamia Solved Paper-2011

  • question_answer
        The oxidation number of Cr in\[Cr{{O}_{5}}\]is

    A)  +2                                         

    B)  +4

    C)  +6                                         

    D)  +8

    Correct Answer: C

    Solution :

                    Structure of\[Cr{{O}_{5}}\]is as follows \[x+1\times (-2)+4(-1)=0\] \[x-2-4=0\]or \[x=+6\]


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