Question

What is natural and artificial indicator? Give some examples.

Answer 1

Indicator

• An indicator is a compound that changes its color in presence of an acid or base.

Natural indicator

• The indicator that is naturally derived from plant pigments is called a natural indicator.
• For example, Litmus, turmeric, red cabbage, etc.

Artificial indicator

• Artificial indicators are the chemical compounds formed in the laboratory and are also known as synthetic indicators.
• For example, methyl orange and phenolphthalein.