Chemistry 5070 · O Level · Redox

Redox — practice question

Which reagent and which observation are used for the test for a reducing agent?

  • Aacidified aqueous potassium manganate(VII), colourless to purple
  • Bacidified aqueous potassium manganate(VII), purple to colourless
  • Caqueous potassium iodide, colourless to purple
  • Daqueous potassium iodide, purple to colourless

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