Question

State with suitable example of Huckel's rule of aromatic character.

Answer 1

If (4n+2) no. of $\pi$ $e^{-}$ are there in cyclic planar, compound and delocalisation also occur in that compound and then it is called aromatic. n should be 1,2,3....

$4n+2=6\pi$ $e^{-}$

$4n=4$

$n=1$ obey huckel rule

$\to cyclic$

$\to delocalisation$

$\to planar$

$\therefore$ compound is aromatic.