Which one of the following pairs represents different molecules rather than the same molecule drawn — GOC and Organic Chemistry Basics Chemistry Question

💡 Solution & Explanation

Identical molecules can freely rotate in 3D space. Visual bending of the chain does not alter the actual connectivity. If the longest continuous chain and substituent locants change (e.g., Isopentane vs Neopentane), they are structural isomers, representing different molecules.