Write the structural formula of ethanol. What happens when it is heated with excess of conc. H2SO4 at 443 K? Write the chemical equation for the reaction stating the role of conc. H2SO4 in this reaction.

Structural Formula of ethanol is:

Ethene is produced when ethanol is heated with excess of conc. H2SO4 at 443 K.

Conc. H2SO4 acts as a dehydrating agent.