BVP Medical BVP Medical Solved Paper-2007

  • question_answer
    Boron halides behave as Lewis base, because of their

    A)  ionic nature

    B)  acidic nature

    C)  covalent nature

    D)  electron deficient nature

    Correct Answer: D

    Solution :

                    \[{{B}_{G.S.}}\,1{{s}^{2}},2{{s}^{2}},2{{p}^{1}}\] It means B has three electrons in valence shell and shares three  electrons with halogens that makes  total of six electrons. Hence, they are electron deficient compounds.


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