VMMC VMMC Medical Solved Paper-2014

  • question_answer
    The pair of species having identical shape for molecules of both species is

    A) \[Xe{{F}_{2}}.lF_{2}^{-}\]                            

    B) \[B{{F}_{3}}.N{{H}_{3}}\]

    C) \[C{{F}_{4}},S{{F}_{4}}\]                               

    D) \[PC{{l}_{5}},lC{{l}_{5}}\]

    Correct Answer: A

    Solution :

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


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