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ACIDS – CBSE NCERT Science (Chemistry)

ACIDS – CBSE NCERT Science (Chemistry)


Its classification

Uses of acids in our daily lives


Acid is a chemical compound that is a corrosive or sour-tasting liquid and which neutralizes alkalis, dissolves some metals, and turns litmus red.

Acids are divided into two main classes:

Weak acids

Strong acids

Strong acids are very corrosive and cause severe skin burns, examples are hydrochloric acid, nitric acid, and sulphuric acid. They are also called mineral or inorganic acids.

Weak acids are mildly corrosive and normally do not affect skin, example are acetic acid (Vinegar), citric acid (citrus fruit juice acid), and tartaric acid (used in making mayonnaise). They are also called natural or organic acids.

Uses of acids in our daily life

Benzoic acid is used in:

cosmetics, dyes, plastics

insect repellents

food products as a preservative

Hydrochloric acid is a powerful Acid.

It is used in:

bleaching powder.

leather processing.

in household cleaning products.

in production of gelatin and in skin polishes.

It is widely used at industrial level.

Nitric acid plays a significant role in the manufacture of various products such as: 

Explosives like trinitrotoluene (T.N.T.) etc.

It is added to foods in the manufacturing process to give them a sour taste or to serve as an antioxidant.

It can also improve both the quality and stability of a variety of foods in the manufacturing process.

This way Acids are very useful in our daily lives.

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