MHT CET Medical202622 April 2026Morning ShiftChemistryCarboxylic Acid DerivativesActual
What is the number of - COOH groups in a citric acid molecule?
Options
- A4
- B1
- C2
- D3
Correct answer
D. 3
Step-by-step solution
Citric acid is a tricarboxylic acid with the IUPAC name 2 -hydroxypropane- 1,2,3 -tricarboxylic acid. The chemical structure of citric acid is: HOOC - CH ₂- C ( OH )( COOH )- CH ₂- COOH From the structure, it is clear that there are 3 carboxylic acid ( - COOH ) groups present in a citric acid molecule. Answer: 3