RAJASTHAN ­ PET Rajasthan PET Solved Paper-2004

  • question_answer
    The pair of isoelectronic species is

    A)  \[{{N}_{2}},CO\]          

    B)  \[CO_{3}^{2-},NO_{3}^{-}\]

    C)  \[NO_{3}^{-},HCO_{3}^{-}\]      

    D)  All of these

    Correct Answer: D

    Solution :

     Number of electrons in N3 and CO are 14 (ie. same) hence these are isoelectronic species. Number of electrons in\[CO_{3}^{2-},NO_{3}^{-}\]and\[HCO_{3}^{-}\]are 32 (ie, same) hence these are also isoelectronic species.


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