Q. 394.8( 8 Votes )

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

Answer :

In this reaction, sulphuric acid is working as a dehydrating agent.

Sulphuric acid has a property to attract water. It removes water from other compounds without dissolving in it. Thus it is considered a good drying agent.

The chemical equation of this reaction is as follows:

CH3CH2OH + hot conc. H2SO4 (at 443 K) H2C = CH2 + H2

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