How is ethene prepared from ethanol? Give the reaction involved in it.

AcademicChemistryNCERTClass 10

Ethanol can be converted into ethene by the dehydration reaction.
The chemical equation for the reaction is given below:
$CH_3-CH_2OH → CH_2=CH_2 + H_2O$
When ethanol is heated with concentrated sulphuric acid at 170oC, ethanol gets dehydrated to form ethene, an unsaturated hydrocarbon.
Concentrated sulphuric acid acts as the dehydrating agent in this reaction.
Updated on 10-Oct-2022 13:27:40