Question

State two ways to test if the substance is acid.​

Answer 1

i) Test with litmus paper: Place a drop of the given substance on a moist litmus paper. If the colour changes to red, it is an acid. ii) Test with metals: Acids react with metals to produce salt and hydrogen gas. So if the given substance gives a gas with metals and the gas burns with explosion, then it is acid.

Answer 2

Answer:

1.use paper or liquid indicators

2.using olfactory indicators

3.reaction with metals

4.reaction with carbonates and hydrogencarbonates

5.if it neutralises a base then it is an acid