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BVP Medical BVP Medical Solved Paper-2013

  • question_answer
    Outer electronic configuration of phosphorus is \[3{{s}^{2}}3{{p}^{3}}\], however it cannot form \[P{{H}_{5}}\] because

    A)  high \[{{\Delta }_{a}}H\] value of dihydrogen do not favour the formation of \[P{{H}_{5}}\]

    B)  \[{{\Delta }_{eg}}H\] value of hydrogen do not favour the formation of \[P{{H}_{5}}\]

    C)  Both (a) and (b) are correct

    D)  None of the above

    Correct Answer: C

    Solution :

                    Although phosphorus exhibits \[+3\] and \[+5\] oxidation states, it cannot form \[P{{H}_{5}}\]. Besides some other considerations, high \[{{\Delta }_{a}}H\] value of dihydrogen and \[{{\Delta }_{eq}}H\] value of hydrogen do not favour to exhibit the highest oxidation state of P and consequently the formation of \[P{{H}_{5}}\].


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