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What would be the reduction potential of an electrode at 298 K , which originally contained ` 1K_(2)Cr_(2)O_(7)` solution in acidic buffer solution of `pH = 1.0` and which was treated with 50% of the Sn necessary to reduce all `Cr_(2)O_(7)^(2-)" to "Cr^(3+)`.Assume pH of solution remains constant. Given : `E^(0)._(Cr_(2)O_(7)^(2-)//Cr^(3+), H^(+))= 1. 33 V , log 2 = 0.3 , (2.303RT)/F = 0.06`A. `1.285 V`B. `1.193 V`C. `1.187 V`D. None of these |
| Answer» Correct Answer - C | |