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Question: Nitrobenzene can be prepared from benzene by using a mixture of con. HNO3 and conc. H2SO4. In the ni...

Nitrobenzene can be prepared from benzene by using a mixture of con. HNO3 and conc. H2SO4. In the nitrating mixture HNO3 as a

A

Base

B

Acid

C

Reducing agent

D

Catalyst

Answer

Base

Explanation

Solution

HNO3 accepts a proton from H2SO4

H2SO4H++HSO4\mathrm { H } _ { 2 } \mathrm { SO } _ { 4 } \quad \mathrm { H } ^ { + } + \mathrm { HSO } _ { 4 }

HNO3+H+⟶H2O+NO2+H2SO4\mathrm { HNO } _ { 3 } + \mathrm { H } ^ { + } \longrightarrow \mathrm { H } _ { 2 } \mathrm { O } + \mathrm { NO } _ { 2 } ^ { + } \mathrm { H } _ { 2 } \mathrm { SO } _ { 4 }