What are natural indicators? give examples. what are universal indicators?

what are natural indicators? give examples.

what are universal indicators?

Indicator tells us whether the substance is acidic or basic by change in its colour.
The indicators which are obtained from plants are called natural indicators.
Examples of Natural indicators are litmus, turmeric, china rosa, red cabbage etc.
Universal indicator is a mixture of organic dyes or mixed indicators which gives different colours at different concentrations of hydrogen ions in solution.
Example: pH paper or solution