________ are sweet-smelling substances and are used in making perfumes. Suggest some activity and the reaction involved for the preparation.

Open in App

Solution

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 at about $60^{0} C$ for at least 15 minutes as shown in the figure (It should not be heated directly on the flame as the vapor of ethanol catches fire)
Pour into a beaker containing 20 $-$ 50 ml of water and smell the resulting mixture.
$C H_{3} C O O H + C H_{3} C H_{2} O H C o n c . H_{2} S O_{4} - ------- \to C H_{3} C O O C H_{2} C H_{3} + H_{2} O$
Ethanoic acid Ethanol Ester
Then the sweet smell would be observed.

Hence, the answer is $E s t e r$ .

Suggest Corrections

Similar questions

Q. 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.

Q. 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.

(a) Esters are sweet-smelling substances and are used in making perfumes. Describe an activity for the preparation of an ester with the help of a well-labelled diagram. Write an equation for the chemical reaction involved in the formation of the ester. Also writer the names of all the substances involved in the process of esterification.
(b) State any two uses of esters.

Q. A substance X is obtained from an exhaustible natural resource. It is a black and thick liquid with an unpleasant smell. It is a mixture of 175 -200 substances. Some of the products such as synthetic dyes, plastic paints, explosives, perfumes, etc are obtained using this resource.
The substance X is

Q. A neutral compound 'X' of molecular formula C₂H₆O on oxidation with acidified potassium dichromate gives a compound 'Y'. Compound 'X' reacts with 'Y' on warming in presence of conc. H₂SO₄to give a sweet smelling substance 'Z'. What are 'X', 'Y' and 'Z'? Give equations of the reactions involved.

Join BYJU'S Learning Program