Statement I: Alkylation of benzene by Friedel-Crafts reaction often gives polyalkylated benzene. Sta — Aromatic Hydrocarbons Chemistry Question
Question
Statement I: Alkylation of benzene by Friedel-Crafts reaction often gives polyalkylated benzene. Statement II: The ring gets activated for further substitution after the introduction of one alkyl group.
Answer: A
💡 Solution & Explanation
Alkyl groups are electron-releasing (activating). Once one alkyl group is added, the new alkylbenzene is more reactive than the original benzene, making it highly susceptible to a second (and third) electrophilic attack, leading to polyalkylation.
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