Write a balanced reaction where sulphuric acid shows the following properties:
(a) Oxidising agent
(b) Non Volatile Acid
(c) Dehydrating agent
(a) C + 2H2SO4 ⟶ CO2 + 2H2O + 2SO2 ↑
(b) NaCl + H2SO4 ⟶ NaHSO4 + HCl
(c) C2H5OH ethyl alcohol→170°CConc. H2SO4[excess]C2H4ethene↑+H2O\underset{\text{ ethyl alcohol}}{\text{C}_2\text{H}_5\text{OH}} \xrightarrow[170\degree\text{C}]{\text{Conc. H}_2\text{SO}_4\text{[excess]}} \underset{ \text{ethene}}{\text{C}_2\text{H}_4} ↑ + \text{H}_2\text{O} ethyl alcoholC2H5OHConc. H2SO4[excess]170°CetheneC2H4↑+H2O
