11th Class Chemistry Hydrocarbons

  • question_answer 77)   Which of the following compounds are aromatic according to Huckel?s rule? (a)                  (b)             (c)               (d) (e)                 (f)


      (A) The compound has \[8\pi \]-electrons, it will be non aromatic; both rings are non-benzenoid. (B)It is aromatic. It has \[6\pi \]-delocalised electrons\[(4\pi {{e}^{-}}+2\] lone pair electron) (C) 6\[\pi \]-electrons but not in the ring hence it is non-aromatic (D) 10\[\pi {{e}^{-}}\] obeying Huckel rule. It is aromatic. (E) one ring has \[6\pi {{e}^{-}}\]. It is therefore aromatic. (F) It has \[14\pi \]-electrons in conjugation and in the ring. Huckel rule is verified. It will be aromatic provided it has planar ring.

You need to login to perform this action.
You will be redirected in 3 sec spinner