Chapter 23, Problem 30R

To determine

To complete: The given sentence.

Explanation of Solution

Introduction:

Benzene ( ${\text{C}}_{\text{6}}{\text{H}}_{\text{6}}$ ) consists of six hydrogen and six carbon atoms bonded in a ring-structure.

When hydrogen atoms of benzene are replaced with a functional group, aromatic compounds are formed. In other words, a compound which contains a benzene-ring structure is called an aromatic compound. Aromatic compounds are called so because of their distinctive smell and flavor.

Conclusion:

A compound containing benzene-ring structure is called an aromatic compound.