Consider the following relations for emf of an electrochemical cell
(i)   EMF of cell = (Oxidation potential of anode) $$-$$ (Reduction potential of cathode)
(ii)  EMF of cell = (Oxidation potential of anode) + (Reduction potential of cathode)
(iii) EMF of cell = (Reductional potential of anode) + (Reduction potential of cathode)
(iv) EMF of cell = (Oxidation potential of anode) $$-$$ (Oxidation potential of cathode)

Which of the above relations are correct?

An increase in equivalent conductance of a strong electrolyte with dilution is mainly due to

For the reduction of silver ions with copper metal, the standard cell potential was found to be + 0.46 V at 25^oC. The value of standard Gibb's energy, $$\Delta $$G^o will be
(F = 96500 C mol^$$-$$1)

Given :
(i)   Cu²⁺ + 2e^$$-$$ $$ \to $$ Cu,  E^o = 0.337 V
(ii)  Cu²⁺ + e^$$-$$ $$ \to $$ Cu⁺,  E^o = 0.153 V
Electrode potential, E^o for the reaction,
Cu⁺ + e^$$-$$ $$ \to $$ Cu,  will be