Thank you for reporting, we will resolve it shortly
Q.
Aniline when treated with conc. $HNO_3$ gives
Amines
Solution:
Although $- NH_2$ group is $o, p$ - directing but in presence of conc. $HNO_3$ it undergoes protonation to form $- \overset{+}{N}H_3$ which, being electron - deficient, becomes $m$- directing