define indicator experimentally demonstrate the effect of natural indicator taking turmeric as an example
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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.
Explanation:
Turmeric is used as a natural indicator. When turmeric paste is added to the acidic solution, it remains unchanged. The colour in the acidic solution is yellow. When turmeric paste is added to the basic solution the yellow colour changes to red colour due to the neutralization reaction.
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