Question

Consider following compounds out of these, aromatic compounds are:

• A. $I,II$
• B. $II,III$
• C. $I,III$
• D. $I,II,III$

Answer 1

The correct option is A $I,II$

Rules for the compound to called as aromatic compound

$1.$ The molecule should be cyclic.

$2.$ The molecule should be in planar i.e all the atoms should be in same plane.

$3.$ The molecule is fully conjugated.

$4.$ Should follow Huckess rule $(4n+2)\Pi$ electrons

$\to$ As per the rules $I,II$ follows are aromatic compounds.

Ans :- Option A.