Respuesta :

The oxidation state of iron changes from 0 to +3, and of oxygen changes from 0 to -2.

What is oxidation state?

Oxidation state of any atom will tells about the number of exchangeable electrons.

Given chemical reaction is:

Fe + O₂ → Fe₂O₃

Initially in the reactant form, oxidation state of iron (Fe) atom and oxygen (O₂) molecule is zero as they are in elemental form. Oxidation state of 2 iron atoms in the product (Fe₂O₃) is +3 as it is combined with the 3 atoms of oxygen whose oxidation state is -2.

Hence, oxidation state of Fe and oxygen changes as we going from reactants to product side.

To know more about oxidation state, visit the below link:

https://brainly.com/question/8990767

Answer:

B and A

Explanation: