For the cell
`Cu|CuSO_(4)||HCl|H_(2)|Pt` EMF can be increased by:

The e.m.f of the cell Zn|Zn^(2)||Cu^(2+)|Cu can be increased by

For the cell Pt | H_(2) | HCl|| Ag^(+) | Ag , E_(cell) can be increased by:

E.M.F. of Ni(s) | Ni^(2+) (aq)||Cu^(2+) (aq)| Cu(s) cell can be increased by

E.M.F. of Ni(s) (ni^(2+) (aq)||Cu^(2+) (aq)| Cu(s) cell can be increased by

what is the valency of Cu in CuSO_(4) ?

Which of the following changes will increase the EMF of the cell : Co(s)|CoCl_(2)(M_(2))||HCl(M_(2))||(H_(2),g)Pt

Which of the following changes will increase the EMF of the cell : Co(s)|CoCl_(2)(M_(2))||HCl(M_(2))||(H_(2),g)Pt