Question

a compound x on heating with excess concentrated sulphuric acid at 443 K give an unsaturated compound Y. X is also reacts with sodium metal to evolve a colourless gas Z identify X, Y and Z write the 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

formation of y -
$c2h5oh - - h2so4 - - > ch2 = ch2$
sulphuric acid acts as dehydrating agent.