Identifying Functional Groups: Carboxylic Acid

Functional groups are specific groups of atoms within molecules that are responsible for the characteristic chemical reactions of those molecules. In organic chemistry, understanding the properties and reactivity of various functional groups is crucial for predicting reaction outcomes. This question evaluates your knowledge about common functional groups and their associated characteristics.

Consider the molecule below:

R-COOH

Where 'R' can be any hydrocarbon chain. Identify the functional group of the molecule represented by this formula.