Question

what are indicators? why do we use it? give examples​

Answer 1

Answer:

Hello mate...

Acid-base indicators are chemicals used to determine whether an aqueous solution is acidic, neutral, or alkaline. Because acidity and alkalinity relate to pH, they may also be known as pH indicators. Examples of acid-base indicators include litmus paper, phenolphthalein, and red cabbage juice.

Answer 2

In chemistry, INDICATORS are chemical substances which change colour/smell when they are dipped/dissolved in another substance of unknown pH value.

We use indicators to determine the acidity or alkalinity of any substance.

♦ E.G. Litmus solution, Litmus Paper, Methyl orange, Phenolphthalein, Turmeric, Onion, Clove oil, Vanilla essence, etc.