An unknown compound has the structure . How many moles of periodic acid () will be consumed for the — Aldehydes Ketones and Carboxylic Acids Chemistry Question

💡 Solution & Explanation

Periodic acid ($HIO_4$) cleaves $C-C$ bonds between adjacent carbons that bear $-OH$ groups, or an $-OH$ and a $C=O$ group. In this molecule, there are 3 such contiguous cleavable bonds: $C2-C3$ (OH and OH), $C3-C4$ (OH and C=O), and $C4-C5$ (C=O and OH). Thus, exactly 3 moles of $HIO_4$ are required.