A dilute ferrous sulphate solution was gradually added to the beaker containing acidified permanganate solution. The light purple colour of the solution fades and finally disappears. Which of the following is the correct explanation for the observation?
Model Answer & Options
Source: ExemplarKMnO₄ is an oxidising agent, it oxidises FeSO₄
FeSO₄ acts as an oxidising agent and oxidises KMnO₄
The colour disappears due to dilution; no reaction is involved
KMnO₄ is an unstable compound and decomposes in the presence of FeSO₄ to a colourless compound
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