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A hydrogen gas electrode is made by dipping platinum wire in a solution of HCl or `pH = 10` and by passing bydrogen gas around the platinum wire at one atm pressure . The oxidation potential of electrode would be ?A. ` 0.59 V`B. ` 0. 11 8 V`C. ` 1.18 V`D. ` 0.059 V` |
Answer» Correct Answer - A `underset (1atm) (H_2)rarr underset(10^(-10))(2H^+ +2^(-)` `E_(H_2//H^+) = 0- (0.059)/9 log. (10^(-10))^(2)/1` `E_(H_2 //H^+) = + 0.59 V`. |
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