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Choose the correct statement(s)A. At the anode, the species havig minimum reduction potential is formed from the oxidation of correcsponding oxidizable species.B. In highly alkaline medium, the anodic process during the electrolytic process is `4OH^(-)toO_(2)+2H_(2)O+4e^(-)`C. The standard potential of `Cl^(-)|AgCl|Ag` half-cell is related to that of `Ag^(+)"Ag` through the expression `E_(Ag^(+)|Ag)^(@)=E_(Cl^(-)|AgCl|Ag)^(@)+(RT)/(F)lnK_(sp)(AgCl)`D. Compounds of active metals `(Zn,Na,Mg)` are reducible by `H_(2)` whereas those of noble metals `(Cu,Ag,Au)` are not reducible. |
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Answer» Correct Answer - A::B In highly alkaline medium `OH^(-)` ion get oxidise in preference of `H_(2)O` `4OH^(-)toO_(2)+2H_(2)O+4e^(-)` `E_(Cl^(-)//AgCl//Ag)^(@)=E_(At^(+)//Ag)^(@)-(0.059)/(1)log((1)/(K_(sp))` `E_(Red)^(@)` of active metal is lower than `E_(Red)^(@)` of hydrogen so not reduced by hydrogen. |
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