Which property of sulphuric acid is shown by the reaction of concentrated sulphuric acid with:
(i) Ethanol?
(ii) Carbon?
(i) Dehydrating property
C2H5OH→Conc. H2SO4C2H4 [ethene−ethylene]+H2O\text{C}_{2}\text{H}_{5}\text{OH}\xrightarrow{\text{Conc. H}_2\text{SO}_4} \text{C}_{2}\text{H}_{4} \small{\space[ethene-ethylene]} + \text{H}_2\text{O}C2H5OHConc. H2SO4C2H4 [ethene−ethylene]+H2O
(ii) Oxidizing property
C + 2H2SO4 (conc.) ⟶ CO2 + 2SO2 + 2H2O