Aspirin is obtained by acetylation of
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- Phenol
- Salicylaldehyde
- 2-Hydroxybenzoic acid
- Benzoic acid
The Correct Option is C
Solution and Explanation
Aspirin is acetylsalicylic acid. It is made by acetylation, which means replacing the hydrogen of an –OH group with an acetyl group (using acetic anhydride or acetyl chloride).
Step 1:
Salicylic acid is 2-hydroxybenzoic acid. It has a phenolic –OH group right next to a –COOH group.
Step 2:
When the phenolic –OH of 2-hydroxybenzoic acid (salicylic acid) is acetylated, the –OH becomes –OCOCH3, giving acetylsalicylic acid, which is aspirin.
Answer: Option (C) — Aspirin is obtained by acetylation of 2-hydroxybenzoic acid (salicylic acid).
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