Which of the following relationships fall strictly under the classification of structural (constitut — Isomerism and Stereochemistry Chemistry Question

💡 Solution & Explanation

Structural (constitutional) isomerism arises due to differences in the sequence of covalent bonds (connectivity). This category includes Chain, Positional, Functional, Ring-Chain, and Metamerism. Conformational isomerism is a sub-category of Stereoisomerism, arising from spatial 3D arrangements via free rotation around single bonds, not structural connectivity.