Q.
Nitrobenzene can be prepared from benzene by using a mixture of conc. HNO3 and conc. H2SO4. In the nitrating mixture, HNO3 acts as a/an
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a
base
b
acid
c
catalyst
d
reducing agent
answer is A.
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Detailed Solution
HNO3 acts as a base. It reacts with H2SO4 to form the electrophile NO2+ ionHNO3+2H2SO4⇌2[HSO4]-+H3O++NO2+
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