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Shown Below Is an Electrophilic Aromatic Substitution Reaction

question 37

Multiple Choice

Shown below is an electrophilic aromatic substitution reaction. Which of the following statements about this reaction is/are true?

I. The products of ortho and para substitution are favored in the overall reaction.
II. The product of meta substitution is favored in the overall reaction.
III. For all three substitution pathways (ortho, meta, and para) the transition state in the rate-limiting step is lower in energy than the transition state for rate-limiting step in the bromination of benzene.
IV. Compared to the energy of the transition state for the rate-limiting step in the bromination of benzene, the transition state in the rate-limiting step for this reaction is lower in energy for the ortho and para pathways, but higher in energy for the meta pathway.

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