Amount of oxalic acid present in a solution can be determined by its titration with KMnO…
Chemistry · JEE Main · NTA Exams — d- and f-Block Elements
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
- reduces permanganate to manganate
- furnishes H+ ions in addition to those from oxalic acd
- reduces permanganate to Mn2+
- oxidises oxalic acid to carbon dioxide and water
Answer
(C) reduces permanganate to Mn 2+
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