Exams › JEE Main › Chemistry

Which of the following compounds contains a carboxyl group (–COOH)?

1. Picric acid
2. Barbituric acid
3. Ascorbic acid
4. Aspirin

Correct answer: Aspirin

Solution

Aspirin (acetylsalicylic acid) retains a free carboxyl group -COOH on the ring. Picric acid (trinitrophenol) and ascorbic acid (an enediol lactone) have no -COOH, and barbituric acid has only amide/keto groups.

Related JEE Main Chemistry questions

• What is the product formed when toluene (C6H5CH3) is treated with chromyl chloride (CrO2Cl2)?
• o-Xylene is first treated with HNO3 to give compound X, which on reaction with phenol in the presence of H2SO4 forms product Y. What is Y?
• What products are formed when a benzene ring containing a formyl group (–CHO) and a chloro substituent is treated with 50% KOH?
• Which of the following compounds is converted to the corresponding hydrocarbon on reduction with zinc and hydrochloric acid?
• Why do carboxylic acids not undergo the typical addition–elimination reactions shown by aldehydes and ketones?
• Which reagent can convert phenylmethyl ketone directly into ethylbenzene in a single step?

⚔️ Practice JEE Main Chemistry free + battle 1v1 →