Identify the major product of the following reaction:

Methoxy group is the activating group. Activating groups are the electron donating groups. The ortho product is the minor product and the para product is the major product. The ${\mathrm{HNO}}_3+{\mathrm{H}}_2{\mathrm{SO}}_4$is the reagent used for the nitration of benzene. So, the compound $\mathrm{P}$ is the $\mathrm{p}-$nitromethoxybenzene and compound $\mathrm{R}$ is the $\mathrm{o}-$nitromethoxybenzene. Hence, the major product is $\mathrm{p}-$nitromethoxybenzene.

Reaction :-

Hence, the major product is .