What is the common name of the compound shown below?
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → Malonic acid
The compound is \( \ce{HOOC-CH2-COOH} \): two carboxyl groups joined by one \( \ce{CH2} \) group, a three-carbon dicarboxylic acid. Its IUPAC name is propanedioic acid and its common name is malonic acid.
NCERT (2026-27 edition):
8.6.1 Nomenclature – “… Some of the carboxylic acids along with their common and IUPAC names are listed in Table 8.3.”
Table 8.3 Names and Structures of Some Carboxylic Acids
