What is the characteristic physical odour of the mid-chain aliphatic carboxylic acids (specifically — Aldehydes Ketones and Carboxylic Acids Chemistry Question

💡 Solution & Explanation

While lower acids ($C_1-C_3$) are pungent and higher acids (> $C_9$) are odourless waxes, the mid-chain members ($C_4-C_9$) are renowned for their intensely foul, rotten butter smells (e.g., butyric acid).