Question
Describe the following with suitable examples: (i) Preservatives, (ii) Tranquilizers.
Solution
i) Preservatives: A preservative is a substance or a chemical that when added to products such as food, beverages, pharmaceutical drugs, paints, biological samples, cosmetics, wood, and many other products, prevent decomposition by microbial growth or by undesirable chemical changes.
ii) Tranquillizers are a class of chemical compounds used for the treatment of stress, and mild or even severe mental diseases. These relieve anxiety,stress, irritability or excitement by inducing a sense of well-being.
