NEET2013ChemistryHydrocarbonsActual
Nitrobenzene on reaction with conc. HNO ₃ / H ₂ SO ₄ at 80-100^ C forms which one of the following products?
Options
- A1,2-dinitrobenzene
- B1,3-dinitrobenzene
- C1,4-dinitrobenzene
- D1,2,4-trinitrobenzene
Correct answer
B. 1,3-dinitrobenzene
Step-by-step solution
NO ₂ group being electron withdrawing reduces electron density at output positions. Hence, now the meta-position becomes electron rich on which the electrophile (nitronium ion) attacks during nitration.