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AFMC AFMC Solved Paper-2002

  • question_answer
    The oxidation number of phosphorus in \[Ba{{({{H}_{2}}P{{O}_{2}})}_{2}}\]is :

    A) +1                                          

    B) -1

    C) +2                                          

    D) + 3

    Correct Answer: A

    Solution :

    Let the oxidation number of phosphorus in \[Ba({{H}_{2}}P{{O}_{2}})\]is \[x\] \[\therefore \]  \[Ba{{({{H}_{2}}P{{O}_{2}})}_{2}}\] \[=(+2)+(1\times 4)+(x+2)+(-2\times 4)=0\] \[2+4+2x+(-8)=0\]\[x=+1\]


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