Which substituent on a benzene ring is deactivating but ortho/para-directing?
Correct answer D. –Cl
Explanation
Halogens withdraw electrons inductively, deactivating the ring, but donate lone-pair electrons by resonance to the ortho and para positions. –CH₃ and –OH are activating, and –NO₂ is meta-directing.
Answer checked How we write and check questions
Discussion