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Paper 4Theory (Extended)2 marks
Observing color changes in redox reactions can help identify the processes occurring.
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Color Changes in Redox Reactions
In a redox reaction involving potassium iodide, the solution turns brown, indicating the formation of iodine. In another reaction, the addition of acidified potassium manganate(VII) leads to a color change from purple to colorless.
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Describe the significance of the color change observed with potassium iodide in redox reactions.
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