Chemistry - GOC Question with Solution | TestHub

(A) a dihydronaphthalene with two $s{p}^3$ carbons at the ring fusion is not conjugated all round : non-aromatic. (B) cyclooctatetraene is tub shaped and non-aromatic. (C) pentalene has 8 π electrons : anti-aromatic. (D) pyrene has a planar periphery of 14 π electrons : aromatic.