MHT CET202620 April 2026Morning ShiftChemistryGeneral Organic ChemistryActual
What is IUPAC name of following compound?
Options
- ABenzoic acid
- B2-Methylbenzoic acid
- Co-Toluic acid
- D2-Methylcyclohexylcarboxylic acid
Correct answer
B. 2-Methylbenzoic acid
Step-by-step solution
The principal functional group in the given compound is the carboxylic acid group ( -COOH ). Therefore, the parent chain is taken as benzoic acid. Numbering of the benzene ring starts from the carbon atom attached to the -COOH group as position 1. To give the lowest possible number to the substituent, the carbon attached to the methyl group ( -CH₃ ) is numbered as 2. Thus, there is a methyl group at the 2-position of the benzoic acid ring. The IUPAC name of the compound is 2-Methylbenzoic acid. (Note: o-Toluic acid