12. When dil. ferrous sulphate solution reacts with potassium permanganate solution then the purple colour of the solution fades. What is the reason behind this?

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Q. 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. Which of the following is the correct explanation for the observation?

When ferrous sulphate is added to a solution of potassium permanganate, it turns colourless. Why?

Look at the figure given below.

The increasing dilution of potassium permanganate solution with water fades the pink colour of the solution. This explains which property of matter?

Q. Potassium permanganate is dissolved in water.

10

ml of this solution is taken and water is added. The purple colour of potassium permanganate ___________.

Question 6

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?

(a) ${KMnO}_{4}$ is an oxidizing agent, it oxidises ${FeSO}_{4}$ .
(b) ${FeSO}_{4}$ acts as an oxidizing agent and oxidises ${KMnO}_{4}$ .
(c) The colour disappears due to dilution; no reaction is involved.
(d) ${KMnO}_{4}$ is an unstable compound and decomposes in presence of ${FeSO}_{4}$ to a colourless compound.

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