Predict the product of the following reaction

Explanation

Due to the presence of lone pairs of electrons on oxyge, it has +R-effect while C=O group has -R-effect

As a result density is more in the ring attached to O- atom than in the ring attached to C=O group. in other words, `NO_(2)^(+)` will attach the ring attachd to oxygen. further, due to +R-effect of the O-atom, electron density increases at o- and p-positions. but, due to steric hindrance at o-position, electrophilic substitution mainly occurs at the p-position. thus,
.