question_answer

The number of unpaired electrons in ferrous ion is

A) 3                                             

B) 2

C) 4                                             

D) 5

Correct Answer: C

Solution :

- Ous with the name of iron shows that it is in + 2 oxidation state. \[F{{e}^{2+}}=[Ar]3{{d}^{6}},4s0\]