Which of the Following Mechanistic Steps Do You Expect in Bromination

question 51

Multiple Choice

Which of the following mechanistic steps do you expect in bromination of benzene with Br₂ and FeBr₃ as a catalyst?
I. Formation of Br+[FeBr4]-
II. Attack of [FeBr4]- on benzene ring
III. Formation of arenium ion
IV. Deprotonation of arenium ion
V. Nucleophilic attack of Br+

• A) I), III), and IV)
• B) I), II), and IV)
• C) II), III), and V)
• D) III), IV), and V)
• E) II), IV), and V)

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