Question

mention some of the indicators to identify some changes​

Answer 1

Answer:

Indicators are substances that changes colour when brought in contact with a base or an acid.

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Answer

Blue litmus. It turns into red colour when its in contact with an acid. ...

Red litmus. ...

Methyl orange. ...

Phenolphthalein.

Answer 2

Answer:Here is your answer: Indicators are substances that changes colour when brought in contact with a base or an acid.

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Answer

Blue litmus. It turns into red colour when its in contact with an acid. ...

Red litmus. ...

Methyl orange. ...

Phenolphthalein.

Explanation: