_________is a natural indicator which is extracted from lichens.

Which of the following is acidic in nature?

Oxalic acid is found in

The reaction between an acid and a base is known as _______________ reaction.

Which of the following phenomena occur when a small amount of acid is added to water?

Ionization, Neutralisation, Dilution, Salt formation

The acid found in vinegar is

Which of the following salts does not contain water of crystallization?

A solution turns red litmus blue, its pH is likely to be

____________ is known as baking soda.

An aqueous solution turns red litmus solution blue. Excess addition of which of  the following solution would reverse the change.