Question

What is indicator???????
short answer required.
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Answer 1

Answer:

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Explanation:

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 mode!

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Answer 2

I N D I C A T O R

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The Substance which are neither Acidic nor Basic and chemically inert in Nature is called as an Indicator. Indicator changes their Colours in the presence of acid or base.