Some meta-directing substituents in aromatic substitution are given. Which one is most deactivating?
A. – COOH
B. – NO2
C. – C N
D. – SO3H
Answer:B
Some meta-directing substituents in aromatic substitution are given. Which one is most deactivating?
A. – COOH B. – NO2 C. – C N D. – SO3H