BHU PMT BHU PMT (Mains) Solved Paper-2005

  • question_answer
    Which of the following has pn - dn bonding?

    A) \[NO_{3}^{-}\]                                 

    B) \[SO_{3}^{2-}\]

    C)  \[BO_{3}^{3-}\]                              

    D)  \[CO_{3}^{2-}\]

    Correct Answer: B

    Solution :

                     In\[SO_{3}^{2-}\]d-orbifal of S atom overlaps with p-orbital of O-atom to form a Ti-bond hence, \[SO_{3}^{2-}\]has\[p\pi -d\pi \]bonding.


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