Question

A compound X on heating with ecess conc.sulphuricacid in 443K gives an unsaturated compound Y . X also reacts with sodium metal to evolve a colourless gas Z .Identify X,Y and Z

Answer 1

X →443 Kconc. H2SO4 Y ( unsaturated compound)

Z is hydrogen (Colourless gas) 

X, Y and Z are alcohol, alkene and hydrogen respectively.

Suppose X is ethanol,it gives alkene on reacting with conc. H2SO4

 C2H5OH (X) →443 Kconc. H2SO4  C2H4 (Y)

2C2H5OH →Na2C2H5O-Na+ + H2 (Z)

Answer 2

Here x is ethanol Y is ehene and z is hydrogen