CMC Medical CMC-Medical VELLORE Solved Paper-2007

  • question_answer
    Which of the following two are is structural?

    A)  \[Xe{{F}_{2}},\,IF_{2}^{-}\]                        

    B)  \[N{{H}_{3}},\,B{{F}_{3}}\]

    C)  \[CO_{3}^{2-},\,\,SO_{3}^{2-}\]                              

    D)  \[PC{{l}_{5}},\,IC{{l}_{5}}\]

    Correct Answer: A

    Solution :

                    Both \[Xe{{F}_{2}}\] and \[IF_{2}^{-}\] are linear species but the central atoms \[Xe\] and \[I\] undergo \[s{{p}^{3}}d\]hybridization with all the three equatorial positions occupied by lone pair of electrons.


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