Hot conc. H2SO4 acts as moderately strong oxidising agent. It oxidises both metals and nonmetals. Which of the following element is oxidised by conc. H2SO4 into two gaseous products?
H2SO4
H2O + SO2
C + 2O2
CO2
And the net reaction is obtained by multiplying reaction 1 by 2.
Addition of reaction 1 and reaction 2
C + 2H2SO4
CO2 + 2SO2 + 2H2O
The gaseous product formed during the oxidation of carbon by H2SO4 are:
CO2 AND SO2.
Hence the correct option is (iii)
1