Which cell will measures standard electrode potential of copper electrode ?

Options

A. `Pt(s)|H_(2)(g,0.1 bar)|H^(+)(aq),1 M)||Cu^(2+)(aq, 1 M)|Cu`
B. `Pt(s)|H_(2)(g,1 bar)|H^(+)(aq,1 MM)||(cu^(2+)(aq,2M)|Cu`
C. `Pt(s)|H_(2)(g,1bar)|H^(+)(aq,1M)||Cu^(2+)(aq,1M)|Cu`
D. `Pt(s)|H_(2)(g,1bar)H^(+)(Aq , 0.1 M)||Cu^(2+)(aq , 1 M)|Cu`

Answer

D

Explanation

`Pt(S)|H_(2)(g,1 bar )|H^(+)(aq,1 M)||Cu^(2+) (aq),1M)|Cu`