Question

1. What are indicators. What the types of
indicators Give examples.?​

Answer 1

Answer. An indicator prepared from natural substances is known as natural indicator. Examples are Litmus, Turmeric, China rose petals, snowball plant, Red Cabbage and Grape Juice… . An indicator prepared from artificial substances is known as synthetic indicator Examples are Phenolphthalein and Methyl Orange.

Answer 2

Answer: Indicators are substances that change their colour when they react with another substance that changes its pH level.

There are 2 types of indicators:

• Natural indicator: They're made from natural sources.
• Synthetic indicator: They're prepared from artificial sources.

Examples of natural indicators are red cabbage, turmeric,litmus, grape juice etc.

And, examples of synthetic indicators are Methy Orange,Phenolphthalein,Thymolphthalein,Phenol Red etc.