The compound(s) that direct incoming electrophile predominantly at meta position is/are
Answer»
Solution :Both `-CF_3 and -CN` are METADIRECTIONGROUPS. `-CH_2Cl` is deactivating but ortho/para DIRECTING due to hyperconjugation bye benzylic hydrogens. In (d) electrophilic attack occur at ortho/para positions of the ring directly BONDED to oxygen atom.