Question

In the nitration of benzene using a mixture of conc. H₂SO₄ and conc. HNO₃ the Species which initiates the reaction is_______________

• A. NO₂
• B. NO⁺
• C. NO₂⁺
• D. NO₂^-

Answer 1

The correct option is C

NO₂⁺

$H_{2}S{O}_4+HN{O}_3\to H_{2}N{O}_3^{+}+H_S{O}_4^{-}$

$H_{2}N{O}_3^{+}\to H_{2}O+N{O}_2^{+}$

The electrophile in nitration of benzene is nitronium ion $\left(N{O}_2^{+}\right)$