Which colour is shown by the permanganate ion?

Actually, the Permanganate ion shows a purple colour.

Potassium permanganate

Potassium permanganate is an oxidising agent with disinfectant, deodorising and astringent properties. Its chemical formula is KMnO4. KMnO4 has a deep purple colour. The metal ions in KMnO4 contains d electron and, therefore, charge transfer occurs from O to Mn+. The colour of KMnO4 is due to charge transfer transitions by absorption of visible light.

  • Potassium permanganate is used extensively in the water treatment industry.
  • A major application of KMnO4 is as a reagent for the synthesis of organic compounds.
  • Potassium permanganate is one of the principal chemicals used in the film and television industries.

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