Question

Phenol is heated with phthalic anhydride in the presence of cone. H\(_2\)SO\(_4\). The product gives pink colour with alkaline ferric chloride. The product is

• A. Salicylic acid
• B. Bakelite
• C. Phenolphthalein
• D. Fluorescein

Hint:

Salicylic acid is produced from the reaction of phenol with phthalic anhydride, and it reacts with ferric chloride to give a characteristic pink colour.

Answer 1

The Correct Option is A

Step 1: Reaction analysis.
When phenol reacts with phthalic anhydride in the presence of sulfuric acid, the product formed is salicylic acid, which gives a pink colour with alkaline ferric chloride.

Step 2: Conclusion.
The correct product is salicylic acid, corresponding to option (1).