Question

what is indicator? and type of indicator .​

Answer 1

The substance that indicates whether the given solution is acidic or basic in nature is called indicator.

Ex:- Phenolphthalein, litmus paper

Answer 2

Answer:

An indicator is a substance that changes its color in acidic and basic medium. An indicator shows one color in an acidic medium and different colors in a basic medium so that they are called indicators. There are different types of indicators:

Indicators derived from natural sources are called natural indicators. eg:- Litmus, red cabbage

indicators prepared in the laboratory are called synthetic indicators. eg:- Phenophtaline

Olfactory indicators are which give different odors in acidic and basic medium. eg:-Onion, vanilla essence, etc.