[php snippet=3]
Which compound below does NOT show aromatic properties?

Loading ...
Correct Answer: D.
Aromatic compounds follow four rules: (1) They are conjugated—there needs to one “p” orbital from each atom in the ring, so each atom must be either sp2 or sp hybridized; 2) They are cyclic: linear systems are not aromatic; 3) They are planar: there is good overlap/interaction between p orbitals; 4) they follow the The Huckel Rule—4n+2 pi electrons in the cyclic conjugated pi system (n = 0, 1, 2, 3 etc.)

Get it right? Tweet at us:
Subscribe below to receive the MCAT Question of the Day delivered straight to your inbox every morning.