How can carboxylic acids be classified based on the nature of the attached group to the carboxylic carbon, and what are examples of these classifications?

Carboxylic acids can be classified based on the nature of the group attached to the carboxylic carbon into two main categories: aliphatic and aromatic. Aliphatic carboxylic acids have the carboxyl group attached to an aliphatic (non-aromatic) carbon chain, and examples include acetic acid (CH₃COOH) and butyric acid (CH₃CH₂CH₂COOH). Aromatic carboxylic acids feature the carboxyl group attached to an aromatic ring, such as benzoic acid (C₆H₅COOH). These classifications impact the chemical and physical properties of carboxylic acids, influencing factors like solubility, boiling points, and reactivity in various chemical reactions.