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 $60^{\circ} C$ 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:

${CH}_{3} COOH + {CH}_{3} {CH}_{2} OH Conc . H_{2} {SO}_{4} ⟶ {CH}_{3} {CH}_{2} {COOCH}_{2} {CH}_{3} + H_{2} O$

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Similar questions

Choose the statement which best describe ester :

Statement 1: Ester is formed due to the reaction between ethanol and Ethanoic acid.

Statement 2: Esters are sweet smelling substances.

Statement 3: Ester are formed due to the reaction between an acid and a carboxylic acid.

Statement 4: On treating with sodium hydroxide, ester is converted back to alcohol and sodium salt of carboxylic acid.

Statement 5: Preparation of soap involves treating sodium hydroxide with ester.

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