When two compounds react chemically, one of the products is water, which is known as a dehydration reaction.
Dehydration is the elimination of water molecules from the body. These are the hydration reaction's inverse.
In the presence of heavy acids or high temperatures, this reaction usually occurs.
These are Elimination Reactions, in which hydrogen is taken through one atom and hydroxyl is removed from the other.
Formation of ethene:
Ethene or ethylene is made by dehydrating ethyl alcohol or ethanol. There are a few distinguishing aspects of this reaction.
This reaction can occur in the presence of strong acids such as sulfuric acid or phosphoric acid, as well as heat and a temperature that is not too high.
Because ethyl alcohol is a primary alcohol, it will be exceedingly unstable if it forms primary carbocation, and so the proton and water will be lost at the same time in a single step reaction.
Conclusion:
Thus, Ethene or ethylene is generated by dehydrating ethanol or ethyl alcohol.
