The Unconditional Guru

Chemical indicators are the substances that give us the information about acids and bases by changing their own colour or smell.

types of indicators :-

1. Natural indicators :- These are the indicators that we get from the nature and are used as it is. For example :- Litmus and turmeric .
2. Synthetic indicators :- These are the indicators that are prepared in laboratories , like phenolphthalein and methyl orange.