Hydrocarbons Question 147
Question: Attacking or reactive or electrophilic species in nitration of benzene is or In the nitration of benzene with concentrated $ HNO_3\text{ and }H_2SO_4 $ the attack on ring is made by [CBSE PMT 1994; MP PET 1996, 2000; Pb. PMT 1998; BHU 2001; BVP 2004; DCE 2003]
Options:
A) $ NO_2^{-} $
B) $ NO_2^{+} $
C) $ NO_3^{-} $
D) $ NO_2 $
Show Answer
Answer:
Correct Answer: B
Solution:
$ HO-NO_2+{H^{+}}HSO_4^{-}\to $
$ H_2O+\underset{\begin{smallmatrix} Nitroniumion \\ \text{(attacking species)} \end{smallmatrix}}{\mathop{NO_2^{+}+HSO_4^{-}}} $
BETA
