Question

What is reaction and component formed when ethanol is heated with concentrated sulphuric acid at 443k.

Answer 1

Dehydration reaction takes place. The product is CH2=CH2 +H2O.
this reaction removes water from ethanol to give ethene

Answer 2

The reaction is Intra Molecular Dehydration
The product formed is ethene

INTRA MOLECULAR DEHYDRATION
➡️Ethanol when heated with excess of concentrated Sulphuric acid at 443K it undergoes Intra Molecular Dehydration(i.e. removal of water within a molecule of ethanol) to give ETHENE