J & K CET Medical J & K - CET Medical Solved Paper-2003

  • question_answer
    Which of the following pentafluorides cant be formed?

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

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

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

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

    Correct Answer: D

    Solution :

                    Bismuth (Bi) does not form pentafluorides due to inert pair effect, i.e., reluctance of the 6s-electrons of bismuth to participiate in bond formation.


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