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 the equation of the chemical reaction of formation of 'Y' and also write the role of sulphuric acid in the reaction.

Answer 1

X is ethanol,
Yis ethene,
z is hydrogen ,
sulphuric acid is used as a dehydrating agent
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Answer 2

X : ethanol (C2H5OH)
Y : ethene ( C2H4)
z : hydrogen gas

C2H5OH ---------- CH2=CH2 + H2O

sulphuric acid helps to remove water from ethanol