Amount of oxalic acid present in a solution can be determined by its titration with KMnO4 solution in the presence of H2SO4. The titration gives unsat...

Amount of oxalic acid present in a solution can be determined by its titration with KMnO4 solution in the presence of H2SO4. The titration gives unsatisfactory result when carried out in the presence of HCl, because HCl

(1) gets oxidised by oxalic acid to chlorine
(2) furnishes H+ ions in addition to those from oxalic acid
(3) reduces permanganate to Mn2+
(4) oxidises oxalic acid to carbon dioxide and water

Anonymous User Chemistry 18 Nov, 2020 64 views

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