Which of the following statements is incorrec | vedclass

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Question

(C) The nitration of benzene is an electrophilic aromatic substitution reaction where the rate-determining step is the formation of the sigma complex

Vedclass · Accepted Answer

The rate of nitration of benzene is higher than the rate of nitration of hexadeuterobenzene.

Vedclass · Answer

(C) The nitration of benzene is an electrophilic aromatic substitution reaction where the rate-determining step is the formation of the sigma complex (arenium ion). Since the $C-H$ or $C-D$ bond cleavage occurs after the rate-determining step,there is no primary kinetic isotope effect. Therefore,the rate of nitration of benzene $(C_6H_6)$ and hexadeuterobenzene $(C_6D_6)$ is approximately the same. Statement $C$ claims that the rate of nitration of benzene is higher than that of hexadeuterobenzene,which is incorrect.

Which of the following statements is incorrect regarding the nitration of aromatic compounds?

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