Apparatus : Test tube, beakers, burner, etc.
Chemicals : Glacial ethanoic acid, ethanol, concentrated sulphuric acid, etc.
Procedure : Take 1 mL ethanol and 1 mL glacial ethanoic acid in a test tube. Add a few drops of concentrated sulphuric acid in it. Keeps this test tube in the beaker containing hot water (hot water bath) for five minutes. Then take 20-30 mL water in another beaker, and pour the above reaction mixture in it and smell it.
What can you say about the smell of the reaction mixture?

Explanation

The reaction mixture has sweet odour. When ethanol reacts with ethanoic acid in presence of acid catalyst, the product formed is an ester, ethyl ethanoate. Esters have sweet fruity smell and hence, they can be easily identified.