Convert ethanol into ethene using:
(a) solid dehydrating agent
(b) hot conc. H2SO4?
Give only balanced equations.
(a) Using Al2O3 as dehydrating agent.
C2H5OH ethyl alcohol→350°CAl2O3C2H4ethene+H2O \underset{\text{ ethyl alcohol}}{\text{C}_2\text{H}_5\text{OH}} \xrightarrow[350\degree\text{C}]{\text{Al}_2\text{O}_3} \underset{ \text{ethene}}{\text{C}_2\text{H}_4} + \text{H}_2\text{O}\ ethyl alcoholC2H5OHAl2O3350°CetheneC2H4+H2O
(b) Using hot conc. H2SO4
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
