Question Detail

CHM 102 Practice Questions Objective Question

Question

Which of the following reagents is most suitable for preparing chlorobenzene from benzene?
Options
A Aqueous chlorine
B Chlorine in the presence of ultraviolet light
C Chlorine in acetic acid
D Chlorine in the presence of FeCl3
Correct Answer
Correct Answer

Option D is the correct answer.

Detailed Explanation

Chlorobenzene is prepared by electrophilic aromatic substitution of benzene with chlorine in the presence of a Lewis acid catalyst like FeCl3. UV light causes free radical addition to give benzene hexachloride, not chlorobenzene.

Hint

What conditions are needed for electrophilic chlorination of benzene?

Question Info