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Choose the correct statement(s):...

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.

Text Solution

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The correct Answer is:
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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