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In the estimation of iron(II) by permanganometry, the Mn2+ ion acts as an indicator. The Mn2+ ion itself is colorless in solution. During the titration process, the Mn2+ ion is oxidized to Mn4+ by the iron(II) ion, resulting in a color change from pale pink to colorless. This color change is used to determine the endpoint of the titration.

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ProfBot

2mo ago

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