Which of the following is a heterocyclic compound?
- A. Benzene
- B. Cyclohexane
- C. Pyridine
- D. Naphthalene
Explanation
A heterocyclic compound has a ring containing at least one atom other than carbon, and in pyridine one of the six ring positions is occupied by nitrogen. Benzene, cyclohexane and naphthalene are all carbocyclic, since their rings are made only of carbon. Furan, thiophene and pyrrole are the other common five membered heterocycles.