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With a labelled diagram describe in brief an activity to show the formation of ester. - Science

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Diagram

With a labelled diagram describe in brief an activity to show the formation of ester.

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Solution

The activity given below shows the formation of ester :

  • 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 the figure below.
  • Pour into a beaker containing 20-50 mL of water.
  • After some time, there will be the formation of a fruity smell compound. The compound formed is an ester.

The formation of the ester can be represented by the chemical reaction as:

\[\ce{\underset{\text{(Ethanoic acid)}}{CH3COOH} + \underset{\text{(Ethanol)}}{C2H5OH}->[conc. H2SO4] \underset{\text{(Ester)}}{CH3COOC2H5} + H2O}\]

Concept: Ethanoic Acid
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