AFMC AFMC Solved Paper-2003

  • question_answer
    Which of the following pent fluoride is not obtained?

    A) \[Sb{{F}_{5}}\]                                 

    B) \[Bi{{F}_{5}}\]

    C) \[P{{F}_{5}}\]                                    

    D) \[As{{F}_{5}}\]

    Correct Answer: B

    Solution :

     Due to maximum inert pair effect in Bi the fluoride \[Bi{{F}_{5}}\]cannot be obtained. NOTE: As we move down in a group due to increase in inert pair effect the higher oxidation stale become lesser stable.


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