Nitrobenzene on reaction with conc. $\mathrm{HNO}_3 / \mathrm{H}_2 \mathrm{SO}_4$ at $80-100^{\circ}…
Nitrobenzene on reaction with conc. $\mathrm{HNO}_3 / \mathrm{H}_2 \mathrm{SO}_4$ at $80-100^{\circ} \mathrm{C}$ forms which one of the following products?
1,2-dinitrobenzene
1,3-dinitrobenzene
1,4-dinitrobenzene
1,2,4-trinitrobenzene
Solution
$\mathrm{NO}_2$ group being electron withdrawing reduces electron density at output positions. Hence, now the meta-position becomes electron rich on which the electrophile (nitronium ion) attacks during nitration.
