Classification of Hydrocarbons

The ring systems having following characteristics are aromatic.

(i) Planar ring containing conjugated π bonds.

(ii) Complete delocalisation of the π−electrons in ring system i.e. each atom in the ring has unhybridised p-orbital, and

(iii) Presence of (4n + 2) π−electrons in the ring where n is an integer (n = 0, 1, 2,...........) [Huckel rule].

Using this information classify the following compounds as aromatic/non-aromatic.

(A)	(B)	(C)	(D)
(E)	(F)	(G)

Which of the following compounds are aromatic according to Huckel’s rule?

(A)	(B)	(C)

(D)	(E)	(F)

When 2-alkyne is treated with sodamide product will be ______.

\[\ce{CH ≡ CH ->[NH4Cl][Cu2Cl2] Product}\]

Product is: