EPt,12F2/F-0 = +2.87V ; EAu+3/Au0 = +1.4V
EFe+3/Fe+20 = +0.772V; ECu+/Cuo =+ 0.52V
Based on the above data the best oxidant is
F2
Au+3
Fe+3
Cu+
SRP values of F2 > Au+3 > Fe+3> Cu+
∴Tendency to undergo reduction is F2 > Au+3> Fe+3> Cu+
Oxidizing power of F2> Au+3 > Fe+3> Cu+