Note AcademyNote Academy
Start

Chemistry · May / June 2023 · Paper 12 · Question 20

5070Redox

Which reagent and observation describes the test for a reducing agent?

  1. Aacidified aqueous potassium manganate(VII); colourless to purple
  2. Bacidified aqueous potassium manganate(VII); purple to colourless
  3. Caqueous potassium iodide; colourless to purple
  4. Daqueous potassium iodide; purple to colourless

As printed in the paper

Show the answer

Correct answer: B. acidified aqueous potassium manganate(VII); purple to colourless

Sit this whole paper →More on Redox

Make a free account to save your answers and see your weak topics and ask the AI why a wrong answer is wrong.