1.

Which cell will measure standard electrode potential of copper electrode?

Answer»

`Pt(s)|H_(2)(g,0.01" BAR")|H^(+)(aq.,1M)||Cu^(2+)(aq.,1M)|Cu`
`Pt(s)|H_(2)(g,1" bar")|H^(+)(aq.,1M)||Cu^(2+)(aq.,2M)|Cu`
`Pt(s)+H_(2)(g,1" bar")|H^(+)(aq.,1M)||Cu^(2+)(aq.,1M)|Cu`
`Pt(s)|H_(2)(g,1" bar")|H^(+)(aq.,0.1M)||Cu^(2+)(aq.,1M)|Cu`

Solution :For STANDARD electrode potential, `[Cu^(2+)]=1M`.


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