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Acids, Bases and Salts

Classification of Common Substances into Acids and Bases

You must have noticed that baking soda is bitter in taste and lime juice is sour in taste. Do you know the reason for this?

Lime juice contains chemicals that belong to the family of acids. Acids are substances that are sour to taste. Presence of these acidic chemicals makes lime juice sour. On the other hand, baking soda belongs to the family of bases. Bases are the substances that have a bitter taste.

Here, we will learn about acids, bases, and their properties.

Acids

Acids are substances having a sour taste. Orange, tamarind, raw mango etc. are sour in taste. Therefore, these substances are acidic in nature.

The given table lists some acids that are present in common substances.

Acid

Substance

Acetic acid

Vinegar

Citric acid

Lemon, orange

Tartaric acid

Tamarind, grapes

Ascorbic acid

All citrus fruits

Lactic acid

Curd


Properties of acids:
  • They are sour in taste.
  • They contain hydrogen ion (H+) as a main constituent.
  • They react with metals to form hydrogen gas.
  • They react with carbonates and liberate…

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