By Team Aakash Byju's | 24th November 2022

Which of the Following are Heterocyclic Aromatic Compounds?

O

A.

N

B.

N

H

|

C.

S

D.

Your options are:

The correct options are

Detailed Explanation

Arrow

N

B.

N

H

|

C.

S

D.

Heterocyclic compounds are compounds with some or all of the atoms in their molecules joined in rings containing at least one atom of an element other than carbon.

Heterocyclic Alicyclic Compounds

According to Huckel’s rule, if a cyclic, planar molecule has (4n+2)π electrons, it is considered aromatic.

π

π

π

Huckel's Rule

4    Electrons Not Aromatic

8    Electrons Not Aromatic

2    Electrons Aromatic

6    Electrons Aromatic

10    Electrons Aromatic

π

π

The most common heterocycles are those with five or six-membered rings and containing hetero members of Nitrogen, oxygen and sulphur.

Heterocyclic Amine

Hence, pyridine, pyrrole and thiophene are all heterocyclic aromatic compounds.

Heterocyclic Aromatic Compound