Which of the following compounds exhibit metamerism with one another? — Amines Chemistry Question

💡 Solution & Explanation

Metamerism arises due to the different arrangement of alkyl chains on either side of the polyvalent functional group (the nitrogen atom). Option B pairs $C_2H_5-NH-C_2H_5$ with $CH_3-NH-C_3H_7$ (different alkyl groups around the $2^\circ$ amine). Option C pairs a methyl/propyl group with a methyl/isopropyl group around the amine, shifting the structural arrangement across the polyvalent N atom. Option A compares a $2^\circ$ to a $3^\circ$ amine (functional isomers). Option D consists of primary amines (no metamerism, only position isomerism).