5
series VO2
+ < Cr2O7
2– < MnO4 
– This is due to the increasing stability of the lower species to which they
are reduced Solution
Solution
Solution
Solution
Solution
Rationalised 2023-24
101
The d- and f- Block Elements
EFor the first row transition metals the Eo values are:
o
V
Cr
Mn
Fe
Co
Ni
Cu
(M
2+/M)
–1 18
– 0