In an electrophilic substitution
reaction of nitrobenzene, the presence of nitro group..........
(a) deactivates the ring by
(b) activates the ring by
(c) decreases the charge density
at ortho and para positions of the ring relative to meta position by resonance
(d) increases the charge density
at meta position relative to the ortho and para positions of the ring by
(a, c) Nitro group is
deactivating and meta directing.