Question

what are the condition for aromatic

Answer 1

1) cyclic -- the molecule must be a cyclic polyene;
2) planar -- the geometry of the cyclic part must be planar;
3) each atom in the cyclic system must have a p orbital perpendicular to the     ring;
4) the cyclic system has 4n+2 pi electrons.

Answer 2

Explanation:

1. The molecule should be planar.
2. the molecule should be cyclic with alternate single and double bond
3. The molecule should contain (4n+2)π electron where n= 0,1,2,3,etc.(huckel rule).
4. a molecule which does not satisfy any one or more of the above mentioned condition is said to be non aromatic.