Problem: Below is the reaction mechanism for the formation of nitrobenzene: HNO3 + H2SO4 →  H2NO3+ + HSO4- H2NO3+ + C6H6 → C6H6NO2+ + H2O C6H6NO2+ + HSO4-  → H2SO4 + C6H5NO2 Which substance serves as the catalyst? a) H2NO3+ b) HSO4- c) C6H6NO2+ d) H2SO4

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Problem Details

Below is the reaction mechanism for the formation of nitrobenzene:

HNO3 + H2SO4 →  H2NO3+ + HSO4-

H2NO3+ + C6H6 → C6H6NO2+ + H2O

C6H6NO2+ + HSO4-  → H2SO4 + C6H5NO2

Which substance serves as the catalyst?

a) H2NO3+

b) HSO4-

c) C6H6NO2+

d) H2SO4

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