Question

A compound 'X' on heating with excess concentrated sulphuric acid at 443 K gives an unsaturated compound 'Y'. 'X' also reacts with sodium metal to evolve a colourless gas 'Z'. Identify 'X', 'Y', and 'Z'. Write tge equation of the chemical reaction of formation of 'Y' and also write the role of sulphuric acid in the reaction.

Answer 1

X - Ethanol
Y - Ethene
Z - Hydrogen gas

C2H5OH -----443 K in presence of hot.conc sulphuric acid --> CH2=CH2 + H2O

The role of sulphuric acid is as a dehydrating agent which remove the water from the ethanol to form Ethene.

Answer 2

According to the question,
X- ethanol
Y-Ethene
Z-hydrogen gas

The equations are :
C2H5OH ---------H2SO4----> C2H4 + H2O

NOW,
C2H5OH + Na---------> C2H5ONa + H2

Sulphuric acid acts as a dehydrating agent in the reaction....