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

Explanation

(i) Tranquilizers : Tranquilizers are chemical compounds used for the treatment of stress and mild or even severe mental diseases. e.g., equanil/meprobomate/veronal.
(ii) Food preservatives : Food preservatives are the compounds which prevent spoilage of food due to microbial growth. e.g., sodium benzoate, vinegar.
(iii) Synthetic detergents are cleansing agents which have all the properties of soap but actually do not contain any soap. e.g., Sodium lauryl sulphate.