• Jan 7, 2026 oxidation of benzaldehyde to benzoic acid lab opic and Analytical Techniques Infrared (IR) Spectroscopy: Presence of characteristic carboxylic acid peak around 1700 cm⁻¹ (C=O stretch) and broad O-H stretch around 2500-3300 cm⁻¹. Nuclear Magnetic Resonance (NMR): Proton NMR shows signals consistent with aromatic protons and the carbox By Bernhard Beatty
