Given that the standard oxidation potentials `(E^0)` of `A|A^(+3)` and `A^(+1)|a^(+3)` are 0.20V and -0.40V respectively, the `E^0` of `A^+//A` is

Given that the standard reduction potential (E^(@)) of Cr^(3+) | Cr and Cr^(2+) |Cr are -0.74 and -0.91 V respectively. The E^(@) of Cr^(3+) |Cr^(2+) is:

Given that the standard reduction potential (E^(@)) of Cr^(3+) | Cr and Cr^(2+) |Cr are -0.74 and -0.91 V respectively. The E^(@) of Cr^(3+) |Cr^(2+) is:

Given that the standard potentials ((E^(@))) of CU^(2+)//Cu and CU^(+)//Cu are 0.34V and 0.522V respectively , the E^(@) of CU^(2+)//CU^(+) is :

Given that the standard potentials ((E^(@))) of CU^(2+)//Cu and CU^(+)//Cu are 0.34V and 0.522V respectively , the E^(@) of CU^(2+)//CU^(+) is :

Given that the standard reduction potentials E ^(0) of Fe^(+2)|Feis 0.26V and Fe ^(+3) |Fe is 0.76V respectively. The E ^(@)of Fe ^(+2)|Fe^(+3) is:

Given that the standard reduction potentials E ^(0) of Fe^(+2)|Feis 0.26V and Fe ^(+3) |Fe is 0.76V respectively. The E ^(@)of Fe ^(+2)|Fe^(+3) is:

The standard electrode potentials, E^(@) of Fe^(3+)//Fe^(2+) and Fe^(2+)//Fe at 300 K are +0.77V and -0.44V , respectively. The E^(@) of Fe^(3+)//Fe at the same temperature is

The standard electrode potentials, E^(@) of Fe^(3+)//Fe^(2+) and Fe^(2+)//Fe at 300 K are +0.77 V and -0.44V , respectively, The E^(@) of Fe^(3+)//Fe) at the same temperature is:

The standard electrode potential of Zn^(2+)|ZnandCu^(2+)|Cu are - 0.76 and 0.34 V respectively . The standard e.m.f. of the cell is :