JEE Main & Advanced AIEEE Solved Paper-2011

  • question_answer
    Boron cannot form which one of the following anions?   AIEEE  Solved  Paper-2011

    A) \[BO_{2}^{-}\]                                     

    B) \[BE_{6}^{3-}\]

    C) \[BH_{4}^{-}\]                                     

    D) \[B(OH)_{4}^{-}\]

    Correct Answer: B

    Solution :

                 Due to absence of low lying vacant d orbital in B. \[s{{p}^{3}}{{d}^{2}}\] hybridization is not possible hence \[B{{F}_{6}}^{3-}\] will not formed.


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