Summary
This section covers the structural features, nomenclature, and reactivity of carboxylic acids and nitriles. It emphasizes the importance of resonance stabilization in carboxylate ions, which leads to higher acidity than seen in simple alcohols, and explains how substituent effects influence acid strength. Detailed reaction mechanisms including oxidation, hydrolysis, and nucleophilic acyl substitution are discussed, along with applications in both synthetic organic chemistry and biochemical pathways. Spectroscopic techniques (IR and NMR) provide clear signatures to identify these functional groups and their derivatives.