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In which one of the following changes there are transfer of five electrons?A. `MnO_(4)^(-) to Mn^(2+)`B. `CrO_(4)^(2-) to Cr^(3+)`C. `MnO_(4)^(-) to MnO_(2)`D. `Cr_(2)O_(7)^(2-) to 2Cr^(3+)`

Answer» Correct Answer - A


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