MHT CET Medical202622 April 2026Evening ShiftChemistryCarboxylic Acid DerivativesActual
Which of the following acid does NOT contain -COOH group?
Options
- ALactic acid
- BPicric acid
- CBenzoic acid
- 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