Question

How do you recognize an acid and base using any two type
of Indicators?​

Answer 1

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Some indicators can't actually identify acids or bases, but can only tell you the approximate pH of an acid or a base. For example, methyl orange only works at an acidic pH. It would be the same color above a certain pH (acidic) and also at neutral and alkaline values.

Answer 2

Explanation:

just place it what you want and go with any indicators you want so,when you use litmus papers you have to make a solution and drop it in the paper so the colour changes.