A compound 'X' on heating with excess conc. sulphuric acid at 443 K gi

1.	A compound 'X' on heating with excess conc. sulphuric acid at 443 K gives anunsaturated compound 'Y'Âˇ"X, also reacts with sodium metal to evolve a colourlessgas 'Z'. Identify 'X', 'Y, and 'Z, write the equation of the chemical reaction offormation of 'Y' and also write the role of sulphuric acid in the reaction.
Answer» X - EthanolY - EtheneZ - Hydrogen gas C₂H₅OH ----in presence of hot.concentrated H₂SO₄ and heating at 443 K ----------→ CH₂ = CH₂ + H₂O Here, sulphuric acid behaves as a dehydrating agent which removes the water from ethanol to form ethene.

A compound 'X' on heating with excess conc. sulphuric acid at 443 K gives anunsaturated compound 'Y'Âˇ"X, also reacts with sodium metal to evolve a colourlessgas 'Z'. Identify 'X', 'Y, and 'Z, write the equation of the chemical reaction offormation of 'Y' and also write the role of sulphuric acid in the reaction.

Answer»

X - EthanolY - EtheneZ - Hydrogen gas

C₂H₅OH ----in presence of hot.concentrated H₂SO₄ and heating at 443 K ----------→ CH₂ = CH₂ + H₂O

Here, sulphuric acid behaves as a dehydrating agent which removes the water from ethanol to form ethene.