Chapter 20, Problem 49QAP

Interpretation Introduction

Interpretation:

The structure which is common in all aromatic hydrocarbons should be determined.

Concept Introduction:

Aromatic hydrocarbons are also known as arenes. They are hydrocarbons in ring with alternative single and double bonds such that the pi electrons undergo delocalization. There is no delocalization present in the aliphatic hydrocarbons. The simplest aromatic hydrocarbon is with 6 carbon atoms, the ring is known as benzene. It was first isolated by Michael Faraday in 1825 by determining the 1:1 ratio of C:H in the compound and molecular formula is determined as ${\text{C}}_{\text{6}}{\text{H}}_{\text{6}}$.