What is the major product when ethylbenzene is treated with in the presence of sunlight ()? — Aromatic Hydrocarbons Chemistry Question

💡 Solution & Explanation

Sunlight initiates a free-radical side-chain halogenation. The chlorine radical specifically abstracts the highly reactive benzylic hydrogen to form a resonance-stabilized benzylic radical, yielding 1-chloro-1-phenylethane exclusively.