Question

So
8 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) KMnO4 is an oxidising agent, it oxidises
FeSO4
(b) FeSO4 acts as an oxidising agent and
oxidises KMnO4
(c) The colour disappears due to dilution,
no reaction is involved.
(d) KMnO4 is an unstable compound and
decomposes in the presence of FeSO4 to a
colourless compound. NCERT Exemplar
nate (KMnO4) in presence​

Answer 1

Answer:

Since Potassium permanganate (KMnO₄) is quite an unstable compound, it tends to decompose in the presence of Ferrous sulphate (FeSO₄). This changes the colour of the solution from purple to colourless.

Explanation:

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