Question

what is the n factor of fe+2

Answer 1

Please mention the reaction. Without reaction you can't say about n factor

Answer 2

FeC

2

O

4

⟶Fe

3+

+CO

2

FeCX2OX4⟶FeX3++COX2

Here, Fe initailly exists as Fe2+...after the reaction it gets oxidised to Fe3+...n factor is the change in oxidation state or the no of electrons lost or gained by the substrate in a redox reaction...hence the n factor is 1