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Three different solutions of oxidising agents `KMnO_(4),K_(2)Cr_(2)O_(7) " and "I_(2)` is titrated separately with 0.158 gm of `Na_(2)S_(2)O_(3)`. If molarity of each oxidising agent is 0.1 M and reactions are : I.`MnO_(4)^(-)+S_(2)O_(3)^(2-) toMnO_(2)+SO_(4)^(2-)` II `CrO_(7)^(2-)+S_(2)O_(3)^(2-) to Cr^(3+)+SO_(4)^(2-)` III. `I_(2)+S_(2)O_(3)^(2-) to S_(4)O_(6)^(2-)+I^(-)`A. Volume of `KMnO_(4)` used in maximumB. volume of iodine used is minimumC. wt. of `I_(2)` used in titration is maximumD. all three oxidising agent can act as self indicator. |
| Answer» Correct Answer - A::B::D | |