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Assertion : Hydrochloric acid is not use...

Assertion : Hydrochloric acid is not used to acidify a `KMnO_(4)` solution in volumetric analysis of `Fe^(2+)` and `C_(2) O_(4)^(2-)` because.
Reason : Part of the oxygen produced from `KMnO_(4)` and `HCl` is used up in oxidising `HCl` to `Cl_(2)`.

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This is because a part of oxygen produced from `KMnO_4+HCl` is used up in oxidising `HCl` to `Cl_2`.
`4HCl+2(O)to2H_2O+Cl_2`
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