Write any four physical properties of acids.

1.	Write any four physical properties of acids.
Answer» 1. Acids are sour in taste. 2. They are corrosive in nature. Strong acids can spoil substances like human skin, clothes and paper. 3. Generally acids exist in liquid state but few acids exist in solid state too. E.g. Benzoic acid. 4. Acids are colourless. 5. Acids change the colour of the indicators. Blue litmus paper turns red and methyl orange turns pink when treated with acids.

Answer»

1. Acids are sour in taste.

2. They are corrosive in nature. Strong acids can spoil substances like human skin, clothes and paper.

3. Generally acids exist in liquid state but few acids exist in solid state too.

E.g. Benzoic acid.

4. Acids are colourless.

5. Acids change the colour of the indicators. Blue litmus paper turns red and methyl orange turns pink when treated with acids.

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