Question

A dilute ferrous sulphate solution was gradually added to the beaker containing acidified potassium permanganate solution. The light purple colour of the solution fades and finally disappears. Write the correct explanation for this observation.

September 7, 2024

Answer

Potassium permanganate solution (KMnO₄) is an oxidising agent. It oxidises ferrous sulphate (FeSO₄) to ferric sulphate [Fe2(SO₄)₃].

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