JCECE Engineering JCECE Engineering Solved Paper-2013

  • question_answer
    Which of the following is isoelectronic pair?

    A) \[C{{N}^{-}},\,\,{{O}_{3}}\]                         

    B) \[Cl{{O}_{2}},\,\,Br{{F}_{2}}\]

    C)  \[BrO_{2}^{-},\,\,BrF_{2}^{+}\]               

    D)  \[IC{{I}_{2}},\,\,Cl{{O}_{3}}\]

    Correct Answer: C

    Solution :

    Both\[BrO_{2}^{-}(35+2\times 8+1=52)\]and \[BrF_{2}^{+}(35+2\times 9-1=52)\] have 52 electrons.


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