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MHT CET Medical202622 April 2026Morning ShiftChemistryCarboxylic Acid DerivativesActual

What is the number of - COOH groups in a citric acid molecule?

Options

  1. A4
  2. B1
  3. C2
  4. 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

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