Question:

Chemical equations for the reaction of iron(II)sulphate with acidified potassium dichromate

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test for reducing agents

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  1. red-ox

    Cr2O72-   +  6e-  ------------------>  2Cr3+

    Fe2+  ---------------------->  Fe3+  +  e-

    Cr2O72-   +  6Fe2+  + 14 H+  ----------------->2 Cr3+  + 6 Fe3+  + 7 H2O


  2. FeSO4 + K2Cr2O7 → FeCr2O7 + K2SO4

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