Nitrobenzene on reaction with conc. `(HNO_3)/(H_2SO_4)` at `80-100^@C` forms which one of the following products?

Options

A. 1, 2-dinitrobenzene
B. 1, 3-dinitrobenzene
C. 1, 4-dinitrobenzene
D. 1, 2, 4-trlnitrobenzene

Answer

B

Explanation

`NO_2` group being electron withdrawing reduces electron density at ortho-positions. Hence, now the meta-position becomes electron rich on which the electrophile (nitronium ion) attacks during nitration.
`HNO_3 + H_2SO_4 to H_2NO_3^(+) + HSO_4^(-) + H_2O^(o+) to underset"Electrophile"(NO_2^+)`