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Consider the following aromatic compounds: Chlorobenzene, Anisole, Toluene, Nitrobenzene, Acetophenone, Phenol, Benzoic acid. The number of compounds from the given list that are less reactive than benzene towards electrophilic aromatic substitution is

Correct answer

4

Step-by-step solution

Compounds that are less reactive than benzene towards electrophilic aromatic substitution are those that have deactivating groups attached to the benzene ring. Let us evaluate the substituent in each compound: 1. Chlorobenzene: The - Cl group is deactivating due to its strong -I effect outweighing its +R effect. 2. Anisole: The - OCH ₃ group is activating ( +R > -I ). 3. Toluene: The - CH ₃ group is activating (due to hyperconjugation and +I effect). 4. Nitrobenzene: The - NO ₂ group is strongly deactivating ( -R a

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