MCQ
Attacking or reactive or electrophilic species in nitration of benzene is or In the nitration of benzene with concentrated $HN{O_3}{\rm{ \,and \,}}{H_2}S{O_4}$ the attack on ring is made by
- A$NO_2^ - $
- ✓$NO_2^ + $
- C$NO_3^ - $
- D$N{O_2}$
✓
Answer
Correct option: B.
$NO_2^ + $
b
(b) $HO - N{O_2} + {H^ + }HS{O_4}^ - \to $ $H_2O + \mathop {{NO_2^+}HS{O_4}^-}\limits_{\begin{array}{l}
\,{\rm{Nitronium\,}}\,{\rm{ion}}\\
{\rm{(attacking \,species)}}
\end{array}}$
(b) $HO - N{O_2} + {H^ + }HS{O_4}^ - \to $ $H_2O + \mathop {{NO_2^+}HS{O_4}^-}\limits_{\begin{array}{l}
\,{\rm{Nitronium\,}}\,{\rm{ion}}\\
{\rm{(attacking \,species)}}
\end{array}}$
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