The compound shown reacts with aqueous $\mathrm{NaOH}$ on warming. Select all correct statements.

This is nucleophilic aromatic substitution by the addition-elimination mechanism: hydroxide adds first (rate-determining) to give an anionic intermediate whose charge is delocalised onto the ortho and para nitro groups. Because two such groups are present, the reaction proceeds at a lower temperature than for 4-chloronitrobenzene. No benzyne is involved, since benzyne needs a very strong base such as amide and does not form when the ring is activated for addition.