In an electrophilic substitution reaction of nitrobenzene, the presence of nitro
(i) deactivates the ring by an inductive effect.
(ii) activates the ring by an inductive effect.
(iii) decreases the charge density at ortho and para position of the ring
relative to meta position by resonance.
(iv) increases the charge density at meta position relative to the ortho and
para positions of the ring by resonance
Option (i) and (iii) are the answers.