Question

how ethanol is prepared

Answer 1

Ethanol is prepared by Hydration of alkene, for commercial purposes ethanol is prepared by lacting Ethene with water in the presence of Sulphuric acid.

It is also prepared by the Fermentation of sucrouse or Cane sugar in the presence of Enzymes Invertase, glucose and Fluctose is formed from sucrouse.

Then from glucose enzyme zymase forms ethanol and carbon dioxide.

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Answer 2

Sugar is dissolved from the ground material, or the starch or cellulose is converted into sugar. This is done through a cooking process. Microbes such as yeast or bacteria feed on the sugar, producing ethanol in a process called fermentation, essentially the same way beer and wine are made.