Benzene is nitrated using conc. $\mathrm{HNO}_3$ and conc. $\mathrm{H}_2 \mathrm{SO}_4$. Which among

Question

Benzene is nitrated using conc. $\mathrm{HNO}_3$ and conc. $\mathrm{H}_2 \mathrm{SO}_4$. Which among the following ion is involved in the nitration step?

Professor PC Thomas Classes · Answer

The active electrophile generated by the nitrating mixture ($HNO_3$ + $H_2SO_4$) is the nitronium ion ($NO_2^+$).