Question

please answer me fast.
And also explain me. ​

Answer 1

Answer:

2+ to 0

Explanation:

oxidation state of fe0 is

                                        feo=0

                                         fe-2=0

                                       fe=2

    oxidation state of fe in free state is o

             so thus 2+ to0 is the answer                

Answer 2

Answer:+2 to 0

Explanation:in elemental state oxidation state is 0 for any element