Q. The IUPAC name of the following compound is : CH₃–CH(COOH)–CH₂–CH₂–CH(COOCH₃)–CH₃
A) Methyl-6-carboxy-2,5-dimethylhexanoate.
B) 2-Carboxy-5-methoxycarbonylhexane.
C) 6-Methoxycarbonyl-2,5-dimethylhexanoic acid.
D) Methyl-5-carboxy-2-methylhexanoate.
Explanation
[Solution by Dr. Abubacker] A carboxylic acid outranks an ester, so the compound is named as an acid (a 2,5-dimethylhexanoic acid chain running through to the ester carbon at C-6), with the ester end expressed as a methoxycarbonyl prefix. Option (3) is the only acid-based name. (Medium confidence: the printed option names are loosely written; this follows the official key.) Answer (3).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.