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On the basis of the following `E^(@)` values, the stongest oxidizing agent is `[Fe(CN)_(6)]^(4-) rarr [Fe(CN)_(6)]^(3-)+e^(-), E^(@) = -0.35 V` `Fe^(2+) rarr Fe^(3+)+e^(-), E^(@) = -0.77 V`A. `[Fe(CN)_(6)]^(4-)`B. `Fe^(2+)`C. `Fe^(3+)`D. `[Fe(CN)_(6)]^(3-)` |
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Answer» Correct Answer - C ( c) Substance which have higher reduction potential are stronger oxidising agent . `[Fe(CN)_(6)]^(4-) to [Fe(CN)_(6)]^(3-)+e^(-),E^(@)=-0.35 V` `Fe^(2+) to Fe^(3+)+e^(-), E^(@)=-0.77 V` ltbr ` because E_(oxi)^(@)=-E_(red)^(@)` `:. [Fe(CN)_(6)]^(3-)+e^(-) to [Fe(CN)_(6)]^(4-),E^(@)=-0.35 V` `Fe^(3+)+e^(-) to Fe^(2+), E^(@)=-0.77 V` Hence , `Fe^(3+)` has maximum tendency to reduced, so it is the strongest oxidising agent. |
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