Question detail

Which of the following reactions is an example of electrophilic substitution in benzene?

Try the question, check the answer, then read the explanation to understand the curriculum point.

Show answer Topic hub Objective page

At a glance

MCQ

Type

practice

Style

Topic

Aromatic chemistry (A-level only)

Question

A. Hydrogenation
B. Nitration
C. Dehydrogenation
D. Hydrolysis

Answer

Nitration

Explanation

Nitration is a classic example of electrophilic substitution where a nitro group is introduced into the benzene ring, demonstrating the mechanism of electrophilic substitution.

Common mistake

Incorrect intermediate: benzyl cation

Students think the electrophilic substitution proceeds via a benzyl carbocation intermediate that retains aromaticity.

The correct intermediate is a σ‑complex (arenium ion) where the aromatic π system is temporarily disrupted; aromaticity is restored after deprotonation.

Related flashcards

Flashcard 1 of 5

Press Space to flip, arrows to move