Take 1 mL ethanol (absolute alcohol) and 1 mL glacial acetic acid along with a few drops of concentrated sulphuric acid in a test tube.
Warm in a water-bath for at least five minutes as shown in Fig. 4.11.
Pour into a beaker containing 20-50 mL of water and smell the resulting mixture.
The resulting mixture is an ester. Esters have sweet smell.