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Write ionic equations for the reaction of dichromate ions with (i) hydroxyl ions, (ii) Fe^(+2)ions in acidic medium In which one of the above two reactions will the oxidation number of chromium remains unchanged ? |
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Answer» SOLUTION :(i) `CrO_(7)^(2-) + 2OH^(-) to 2CrO_(4)^(2-) + H_2O` (ii) `Cr_2O_(7)^(2-) + 14H^(+) + 6FE^(2+) to 2Cr^(3+) + 6Fe^(3+) + 7H_2O`. In reaction (i) |
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