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

question 86

Multiple Choice

Which of these is the rate-determining step in the sulfonation of benzene?

• A)Formation of SO₃ from sulfuric acid
• B)Protonation of SO₃ sulfuric acid
• C)Addition of SO₃H⁺ to benzene to form the arenium ion
• D)Loss of a proton from the arenium ion to form benzenesulfonic acid
• E)None of these choices.

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