Question

What is an indicator? Give two examples​

Answer 1

Answer :

Indicator and Examples :

• Indicator is a substance that changes its colour in basic medium and acidic.
• It shows one color in an acidic medium and different color in basic
• This is also artificial or natural substances
• Artificial Indicator is prepared from artificial chemicals or synthetically (laboratory) Example : Methyle orange , Phenolphthalein etc..
• Natural indicators are indicators derived from naturally (material) Example : Turmeric, red cabbage , litmus etc..
• It gives a visible sign
• Olfactory indicators are which giev different odors in basic medium and acidic Example : onion , vanilla essence, essence types etc.. which gives smell

Answer 2

Indicator are those substance which tell wether the given solution is acidic or basic.

OR
Indicators test the acidic and basic nature of a solution.

Ex- Litmus , Turmeric : Natural indicators
phenopthelian and Methyl Orange : Man made indicators..