Question

2. What are indicators ?​

Answer 1

Explanation:

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Indicators:  Indicators are substances that are used to test whether a substance is acidic or basic ot neutral in nature. They change their color when added to a solution containing an acidic or a basic substance.

Example: Turmeric gives brownish red color in basic medium and yellow in acidic medium.

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Answer 2

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$<font color= " red">$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. $<marquee>♥mark as brainliest..✌♥</marquee>$