1
Question
(a) What are esters? How are they formed?
[ 2 marks]
(b) Write two uses of esters?
[ 2 marks]
[ 2 marks]
(b) Write two uses of esters?
[ 2 marks]
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Solution
(a) Esters are the group of organic compounds which contain the functional group (–COOR) called ester group. The value of R may change as —CH3,—C2H5,—C3H7 etc. [1 mark]
Esters are formed as a result of chemical reaction called esterification.
[1 mark]
Uses of esters
(i) Esters have a pleasant smell. These are used as flavouring agents and also in perfumes. [1 mark]
(ii) Esters of glycerol known as triglycerides are used in the manufacture of soaps. This reaction is called saponification reaction. [1 mark]
(a) Esters are the group of organic compounds which contain the functional group (–COOR) called ester group. The value of R may change as —CH3,—C2H5,—C3H7 etc. [1 mark]
Esters are formed as a result of chemical reaction called esterification.
[1 mark]
Uses of esters
(i) Esters have a pleasant smell. These are used as flavouring agents and also in perfumes. [1 mark]
(ii) Esters of glycerol known as triglycerides are used in the manufacture of soaps. This reaction is called saponification reaction. [1 mark]
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