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Ethene is formed when ethanol at 443 K i...

Ethene is formed when ethanol at 443 K is heated with excess of concentrated sulphuric acid. What is the role of acid in the this reaction ? Write the balanced chemical equation of this reaction.

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Conversion of ethanol to ethene is a dehydration reaction which occurs in the presence of excess of concentrated sulphuruc acid .Here concentrated sulphuruc acid acts as dehydrating agent and romovewater molecule from ethanol to form ethene.
`CH_(3)CH_(2)OHunderset("Dehydration")overset("Conc"H_(2)SO_(4),44K)toCH_(2)=CH_(2)+H_(2)O`
Hence concentrated sulphuruc acid acts as a dehydrating agent as it removes water molecule.
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