How does acidic potassium permanganate react with (1)Ferrous sulphate and (2)SO2?
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1) When potassium permanganate is added to acidulated solution of ferrous sulphate. (A) Potassium ion is reduced. (B) Manganese ions is oxidised. ... In this type of reaction, one species gets oxidised and the other gets reduced.
2) 5SO2 + 2KMNO4 + 2H2O = 2H2SS3 + 2MNSO4 + K2SO4. Sulphur dioxide being a strong reducing agent ,reduces the purple coloured solution to form a colourless solution.
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