Which of the following sets of substituents are all deactivating groups in electrophilic aromatic substitution reactions? A) Cl, CN, NO₂ B) Cl, NH₂, CH₃ C) CH₃, OCH₃, COCH₃ D) CH₃, NH₂, OCH₃

Question

Quizplus · Accepted Answer

Deactivating groups are those that withdraw electron density from the aromatic ring, making it less reactive towards electrophilic aromatic substitution. Cl (chloro), CN (cyano), and NO2 (nitro) are all electron-withdrawing groups, thus deactivating the aromatic ring.

Which of the Following Sets of Substituents Are All Deactivating