Why the solution is heated during standardisation of sulphuric acid?
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but overheating will cause decomposition of oxalic acid as CO2.. Oxalic acid solution is heated before titration with KMnO4 solution because This reaction happens only in certain temperature. ... The reaction between oxalic acid and KMnO4 is a slow reaction at room temperature.
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Explanation:
water, adding sulphuric acid, and at once titrating with standardised permanganate solution. Heat some of the crystals over a Bunsen-lamp and prove that sulphuric acid is evolved.
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