Which of these is the rate-determining step in the bromination of benzene? A)Complexation of bromine with the iron(III)bromide catalyst B)Formation of Br⁺ ion C)Addition of Br⁺ to benzene to form the arenium ion D)Loss of a proton from the arenium ion to form bromobenzene E)None of these choices.

Question

Quizplus · Accepted Answer

The rate-determining step (slowest step) in the bromination of benzene is the formation of the arenium ion through the addition of Br⁺ to benzene. This step is also referred to as the electrophilic substitution step. The other steps in the reaction occur relatively quickly in comparison. Therefore, choice C is the correct answer.

Which of These Is the Rate-Determining Step in the Bromination