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Question 51
Esters are sweet smelling substance and are used in making perfumes. Suggest some activity and the reaction involved in the preparation of an ester with a well-labelled diagram.

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Solution

  • Take 1 ml ethanol and 1 ml of glacial acetic acid along with few drops of concentrated sulphuric acid in a test tube.
  • Warm in water- bath at about 60C for at least 15 minutes as shown.
  • Pour into a beaker containing 20- 50 ml of water and smell the resulting mixture.
The reaction involved is:

CH3COOH+CH3CH2OHConc.H2SO4CH3CH2COOCH2CH3+H2O



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