NEET2009ChemistryHydrocarbonsActual
Nitrobenzene can be prepared from benzene by using a mixutre of conc HNO ₃ and conc. H ₂ SO ₄ . In the mixture, nitric acid acts as a/an :
Options
- Areducing agent
- Bacid
- Cbase
- Dcatalyst
Correct answer
C. base
Step-by-step solution
Key Idea Proton donor are acids and proton acceptor are bases. Conc. H ₂ SO ₄ and conc. HNO ₃ react in the following manner : aligned & base HNO ₃ + acid H ₂ SO ₄ H ₂ NO ₃⁺+ HSO ₄⁻ & H ₂ NO ₃⁺ nitronium ion NO ₂⁺ + H ₂ O & aligned Hence, in this reaction HNO ₃ acts as a base and H ₂ SO ₄ as an acid.