Question

Which of the following halides undergoes hydrolysis on warming with water/aqueous NaOH?

• A. 1-chloro-2,4,6-trinitrobenzene
• B. Chloroform
• C. Bromoethane
• D. Iodoform

Hint:

Electrophilic halides on aromatic rings are susceptible to hydrolysis, where the halogen is replaced by a hydroxyl group.

Answer 1

The Correct Option is A

Step 1: 1-Chloro-2,4,6-trinitrobenzene undergoes hydrolysis when warmed with water or aqueous NaOH due to the presence of the electrophilic chlorine atom attached to an aromatic ring. The reaction involves nucleophilic substitution.

Step 2: - (B) Chloroform does not undergo hydrolysis under normal conditions.
- (C) Bromoethane undergoes nucleophilic substitution, but hydrolysis is not a typical reaction.
- (D) Iodoform undergoes reaction with alkali to give a precipitate, but it is not typically hydrolyzed in the presence of water or NaOH.
Conclusion: 1-chloro-2,4,6-trinitrobenzene undergoes hydrolysis.