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CMC Medical CMC-Medical VELLORE Solved Paper-2012

  • question_answer
    What is the oxidation state of phosphorus in \[C{{a}_{3}}{{P}_{2}}\]?

    A)  +3                                         

    B)  -3

    C)  +5                                         

    D)  -5

    Correct Answer: B

    Solution :

                    Let the oxidation state of P is\[x\]in \[C{{a}_{3}}{{P}_{2}}\] \[\Rightarrow \]               \[3\,(+\,2)+2x=0\]                                 \[2x=-\,6\]                                 \[x=-\,3\]


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