What are the following substances? Give one example of each one of them.
(i) Tranquilizers
(ii) Food preservatives
(iii) Synthetic detergents

Explanation

(i) Tranquilizers : These area class of chemical compounds used for the treatement of stress, fatigue, and mild or even severe mental disease. These relieve anxiety, stress, irritability or excitement by inducing a sense of well- being Ex. Equanil.
(ii) Food preservatives : It is the proecess of treating and handing food to stop or slow down spoilage and thus allow for longer storage, Preservation usually involves preventing the growth of bacteria, yeasts, fungi and other micro-organisms, as well as retarding the oxidation of fats. Ex-sodium bezoate.
(iii) Synthetic detergents : Synthetic detergents have similar molecular structure and properties as soap, Althrough the cleansing action is similar, the detergents do not react as readily with hard water ions of calcium and magnesium.