MHTCET 20 Apr 2026 Shift 1 Paper

Concept:When a benzene ring contains a carboxylic acid group, the parent name is benzoic acid and numbering starts from the carbon attached to $-COOH$.Explanation:The compound has a benzene ring with a $-COOH$ group and a $-CH_3$ group attached.The carbon bearing the $-COOH$ group is numbered as position $1$.The methyl group is present on the adjacent carbon, so its position is $2$.Therefore, the name is derived by adding methyl at position $2$ to benzoic acid.The correct IUPAC name is $2$-Methylbenzoic acid.Answer:$2$-Methylbenzoic acid, i.e. option B.