Q. Which is a non-aromatic compound?
J & K CETJ & K CET 2010Hydrocarbons
Solution:
Compounds having $(4 n+2) \pi$-electrons and planar structure are aromatic. (Huckle's rule). In the number of $\pi-$ electrons $=8$ which is not in accordance to Huckle's rule, thus this compound is non-aromatic.
