A dilute ferrous sulphate solution was gradually added to the beaker containing acidiied permanganate solution. The light purple colour of the solution fades and finally disappears. Which of the following is the correct explanation for the observation?
A. KMnO4 is an oxidizing agent, it oxidizes FeSO4
B. FeSO4 acts as an oxidizing agent and oxidizes KMnO4
C. The colour disappears due to dilution; no reaction is involved.
D. KMnO4 is an unstable compound and decomposes in presence of FeSO4 to a colourless compound.
