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MHT CET Medical202622 April 2026Evening ShiftChemistryCarboxylic Acid DerivativesActual

Which of the following acid does NOT contain -COOH group?

Options

  1. ALactic acid
  2. BPicric acid
  3. CBenzoic acid
  4. DOxalic acid

Correct answer

B. Picric acid

Step-by-step solution

Lactic acid is 2-hydroxypropanoic acid, which has the formula CH₃CH(OH)COOH . It contains a -COOH group. Picric acid is 2,4,6-trinitrophenol, which has the formula C₆H₂(OH)(NO₂)₃ . It contains a phenolic -OH group but does not contain a -COOH group. Benzoic acid is C₆H₅COOH . It contains a -COOH group. Oxalic acid is ethanedioic acid, HOOC-COOH . It contains two -COOH groups. Therefore, picric acid does not contain a -COOH group. Answer: Picric acid

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