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Amount of oxalic acid present in a solut...

Amount of oxalic acid present in a solution can be determined by its titration with `KMnO_(4)` solution in the presence of `H_(2)SO_(4)` The titration gives unsatisfactory result when carried out in the presence of HCl because HCl

A

oxidizes oxalic acid to carbon dioxide and water

B

gets oxidized by oxalic acid to chlorine

C

furnishes `H^(+)` ions in addition to those from oxalic acid

D

reduces permanganate to `Mn^(2+)`

Text Solution

Verified by Experts

The correct Answer is:
D
HCl reduces `MnO_(4)^(-)` to `Mn^(2+)`
`MnO_(4)^(-)+16H^(+)+10Cl^(-)rarr2Mn^(2+)+8H_(2)O+5Cl_(2)`.
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