Addition of excess chlorine to benzene in the presence of ultraviolet light yields a compound whose — Aromatic Hydrocarbons Chemistry Question

💡 Solution & Explanation

UV light initiates free-radical addition of 3 moles of chlorine to benzene, completely destroying aromaticity and yielding Benzene Hexachloride ($C_6H_6Cl_6$). Its $\gamma$ -isomer is the active insecticide known as Lindane or Gammexane.