Question

what is indicators? ​

Answer 1

Answer:

A pH indicator is a halochromic chemical compound added in small amounts to a solution so the pH of the solution can be determined visually. Hence, a pH indicator is a chemical detector for hydronium ions or hydrogen ions in the Arrhenius model..

Answer 2

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• Indicators are the chemical compounds that tell us whether a substance is acidic or basic by changing its colour.