Exam Style Question - 5

Question: Name the functional groups in HOCH₂CH₂COOH and give the IUPAC name of the compound.The compound contains an -OH group, which is an alcohol (hydroxyl) group, and a -COOH group, which is a carboxylic acid group.When a molecule has more than one functional group, the higher-priority group gives the suffix. The carboxylic acid takes priority, so the name ends in -oic acid, and the -OH is shown by the prefix hydroxy-.The chain has three carbons including the COOH carbon, so the stem is prop-. The COOH carbon is always carbon 1, which puts the OH on carbon 3.The IUPAC name is 3-hydroxypropanoic acid. It is not a propanol because the acid group has priority.