Which of the following statements correctly describes the outcome of treating -butylbenzene with a h — Aromatic Hydrocarbons Chemistry Question

💡 Solution & Explanation

The oxidation of an alkyl side chain on a benzene ring using hot $KMnO_4$ requires the presence of at least one benzylic hydrogen (a hydrogen attached to the carbon directly bonded to the ring). Since $t$ -butylbenzene has a fully substituted benzylic carbon (no benzylic C-H bonds), it resists oxidation and no reaction occurs.