What is the oxidation number of iron in the brown ring complex compound ?

Fe^(2+)._((aq))+NO_(3)^(Θ)._((aq))+H_(2)SO_(4)(conc.)rarr Brown ring .The oxidation number of iron in brown ring complex is

Brown ring complex known as:

The oxidation number of iron in brown ring complexes +x. What is value of x.

The oxidation number of iron in brown ring complexes +x. What is value of x.

Oxidation state of Fe in brown ring complex is

The number of unpaired electrons in the brown ring complex is

The oxidation state of Fe in the brown ring complex [Fe(H_2O_5)NO]SO_4 is