At 298 K, the standard reduction potential are: `1.33 V` for `Cr_(2)O_(7)^(2-) | Cr^(3+)`, `1.36 V` for `Br_(2)|Br^(-)` and 0.54V for `I_(2)|I^(-)`. At pH = 4, `Cr_(2)O_(7)^(2-)` is expected to oxidise? Assume `[Cr^(3+)]` = `[Cr_(2)O_(7)^(2-)]`= 1M.A. `Cl^(-) and Br^(-)`B. `Cl^(-), Br, I^(-)`C. `Br^(-), I^(-)`D. `I^(-) only`

At 298 K, the standard reduction potential are: `1.33 V` for `Cr_(2)O_

1.	At 298 K, the standard reduction potential are: `1.33 V` for `Cr_(2)O_(7)^(2-) \| Cr^(3+)`, `1.36 V` for `Br_(2)\|Br^(-)` and 0.54V for `I_(2)\|I^(-)`. At pH = 4, `Cr_(2)O_(7)^(2-)` is expected to oxidise? Assume `[Cr^(3+)]` = `[Cr_(2)O_(7)^(2-)]`= 1M.A. `Cl^(-) and Br^(-)`B. `Cl^(-), Br, I^(-)`C. `Br^(-), I^(-)`D. `I^(-) only`
Answer» Correct Answer - D

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