For an electrophilic
substitution reaction, the presence of a halogen atom in the benzene ring
......... .
(a) deactivates the ring by
inductive effect
(b) deactivates the ring by
resonance
(c) increases the charge density
at ortho and para positions relative to meta position by resonance
(d) directs the incoming
electrophile to meta position by increasing the charge density relative to
ortho and para positions
Answer:
(a, c) Halogens are
deactivating but ortho-para directing. .