J & K CET Medical J & K - CET Medical Solved Paper-2013

  • question_answer
    Which of the following species has a trigonal planar shape?

    A)  \[{}_{\bullet }^{\bullet }CH_{3}^{-}\]             

    B)  \[CH_{3}^{+}\]

    C)  \[BF_{4}^{-}\]               

    D)  \[Si{{H}_{4}}\]

    Correct Answer: B

    Solution :

     \[H-\underset{\begin{smallmatrix}  | \\  H \end{smallmatrix}}{\overset{\begin{smallmatrix}  H \\  | \end{smallmatrix}}{\mathop{{{C}^{\oplus }}}}}\,-s{{p}^{2}}\]hybridized, trigonal planar with bond  angle\[120{}^\circ \].


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