What are the following substances " Given one example of each of them.
(i) Cationic detergents
(ii) Enzymes
(iii) Sweetening agents

Explanation

(i) See Q. 27 , (i) Set -I , Delhi Board , 2009. (ii) Enzymes : Most of the chemical reactions which occur in living systems process at very high rates even under mild conditions of temperature and pH . These reaction are catalysed by a group of biomolecules called enxymes.
(iii) Sweetening agents : These are the chemical substances which are used to create the sweet teste is food items in place of cane sugar . the first artificaial sweetner was saccharin but it is has come after taste . Most commonly used artificial sweetner these days is aspartame.