Question

Why do we heat oxalic acid solution containing sulphuric acid up to 50-60°C in the
permanganate titration?
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Answer 1

Answer:

We need to heat up oxalic acid solution containing sulphuric acid up to 50-60°C to initiate the decomposition in the permanganate titration.

Explanation:

All reactions during the titration needs activation energy. The preheating up to 50-60°C during the titration will provide the enough kinetic energy. The heated mixture can have the higher frequency of collision among the particles. The heating about 60°C keeps oxalic acid in decomposed state to facilitate better interaction between oxalate and potassium permanganate because the reaction between oxalic acid and potassium permanganate in acidic medium is extremely slow at normal temperature.