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Question: In the nitration of benzene using a mixture of conc. l\(H_{2}sO_{4}\) and conc. \(HNO_{3}\) the spec...

In the nitration of benzene using a mixture of conc. lH2sO4H_{2}sO_{4} and conc. HNO3HNO_{3} the species which initiates the reaction is__________.

A

NO2NO_{2}

B

NO+NO^{+}

C

NO2+NO_{2}^{+}

D

NO2−NO_{2}^{-}

Answer

NO2+NO_{2}^{+}

Explanation

Solution

: N+O2\overset{+}{N}O_{2} (nitronium ion) is produced by transfer of a proton from H2SO4H_{2}SO_{4} to HNO3HNO_{3}