Carboxylic Acids and their derivatives

Carboxylic acids contain the carboxyl acid group.
Their names end with –oic acid.
The functional group on the carboxylic acids can be summarised as -COOH. However the two oxygens aren’t actually joint together:
The simplest carboxylic acid groups contain an alkyl group attached to a carboxyl group- RCOOH.

Carboxylic Acid Derivatives