Why is potassium permanganate pink in colour?
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The colour of KMnO4 is due to transitions of charge transfer by the absorption of visible light
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The colour of KMnO4 is due to transitions of charge transfer by the absorption of visible light. Metal ions possess the electron in KMnO4 and thus the transition of charge takes place from O to Mn+. Undiluted permanganate potassium has a striking purple tint, but pink should be a diluted solution.
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