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J & K CET Medical J & K - CET Medical Solved Paper-2007

  • question_answer
    The oxidation state of Cr in chromium trioxide is

    A)  +3         

    B)  +4  

    C)  +5                                         

    D)  +6

    Correct Answer: A

    Solution :

                    Oxidation state of Cr in\[C{{r}_{2}}{{O}_{3}}\]is \[C{{r}_{2}}{{O}_{3}}\] \[2x+(-2)3=0\] \[2x-6=0\] \[2x=6\] \[x=+3\]


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