Question

Which of the following is a characteristic of a substitution reaction involving halogenation with benzene?

a) Formation of a six-membered ring
b) Retention of aromaticity
c) Breakage of the aromatic ring
d) Conversion to a seven-membered ring

Answer 1

The characteristic of a substitution reaction involving halogenation with benzene is the retention of aromaticity.

Step-by-step explanation:

When benzene undergoes halogenation, a substitution reaction occurs where a halogen atom replaces a hydrogen atom on the benzene ring. This reaction occurs due to the electron delocalization and stability of the aromatic ring. The key characteristic of this reaction is the retention of aromaticity. The six-membered ring of benzene remains intact, and the aromatic bonds between carbon atoms are not broken. Therefore, option b) is the correct answer.