The standard electrode potentials of some electrodes are : {:("Electrode",Zn^(2+)"|"Zn,Cd^(2+)"|"Cd,Ag^(+)"|"Ag,Fe^(2+)"|"Fe),(E^(@)(V),-0.76,-0.40,0.80V,-0.44V):}Which of the following cells are feasible and give their E^(@) cell ? (i) Zn|Zn^(2+)||Cd^(2+)|Cd(ii)Fe|Fe^(2+)||Zn^(2+)|Zn (iii)Cd|Cd^(2+)"||"Ag^(+) (iv) Fe|Fe^(2+)"||"Ag^(2+)|Ag

The standard electrode potentials of some electrodes are : {:("Electro

1.	The standard electrode potentials of some electrodes are : {:("Electrode",Zn^(2+)"\|"Zn,Cd^(2+)"\|"Cd,Ag^(+)"\|"Ag,Fe^(2+)"\|"Fe),(E^(@)(V),-0.76,-0.40,0.80V,-0.44V):}Which of the following cells are feasible and give their E^(@) cell ? (i) Zn\|Zn^(2+)\|\|Cd^(2+)\|Cd(ii)Fe\|Fe^(2+)\|\|Zn^(2+)\|Zn (iii)Cd\|Cd^(2+)"\|\|"Ag^(+) (iv) Fe\|Fe^(2+)"\|\|"Ag^(2+)\|Ag
Answer» (i) , (iii) , (IV) (i) , (iii) (ii) (ii) , (iv) Solution :(i) FEASIBLE ,`E^(@)=+0.36V` (ii) Not feasible , `E^(@)=-0.32V` (iii)Feasible ,`E^(@)=+1.20V` (iv)Feasible , `E^(@)=+1.24V` so, OPTION (A) us correct