Question

what are acid and what are the characteristics of acid​

Answer 1

• Chemical Defination : An acid is a substance which yields positive hydrogen ions when dissolved in water. Physical Defination : An acid is a substance that is sour in taste.  Characteristics of an Acid:  Acids are corrosive in nature. Acids are sour in taste. Acids turn blue litmus red. Acids turn phenolphthalein colourless. Acids turn methyl orange pink.  Hope this is helpful......

Answer 2

. The substance which are sour in taste are called acid

. Acid turns blue litmus to red

. The acid present in plant materials and animals are called organic acid.

Eg:-acetic acid, citric acid, formic acid.

. Acid prepared from the materials of the earth are called mineral acid.

Eg:- sulphuric acid, hydrochloric acid.

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