. What are the following substances? Give one example of each.


(i)Food preservatives

(ii)Synthetic detergents

(iii)Antacids

Best Answer

Ans.(i)Food preservatives: They are used to prevent spoilage of food due to microbial growth.

Example: Table salt, vegetable oils, sodium benzoate etc.

(ii)Synthetic detergents: Synthetic detergents are cleansing agents which have all the properties of soap but which actually do not contain any soap.

Example: Sodium lauryl sulphate (or any one other)

(iii) Antacids:

The substances which neutralize the excess acid and raise the pH to an appropriate level in the stomach are called antacids.

Example: Sodium bicarbonate, Ranitidine etc.

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