NEET Chemistry Substitution Reactions MCQ Question
Which of the following statements about substitution reactions of benzene is correct?
Substitution reactions can occur with excess electrophilic reagent, leading to complete substitution of all hydrogen atoms.
Electrophilic substitution reactions do not involve the formation of a carbocation intermediate.
The sigma complex retains its aromatic character throughout the substitution process.
Removal of a proton from the carbocation intermediate helps restore the aromatic character of benzene.
Correct Answer
Detailed Explanation
Statement A is correct as substitution reactions can lead to the complete replacement of hydrogen atoms in the presence of excess electrophiles. Statement B is incorrect because the mechanism involves a carbocation intermediate. Statement C is incorrect as the sigma complex loses its aromatic character. Statement D is correct but does not make A incorrect.
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