Answer: The half-reaction correctly shows the oxidation of iron [tex]Fe\rightarrow Fe^{2+}+2e^-[/tex]
Explanation:
Oxidation-reduction reaction or redox reaction is defined as the reaction in which oxidation and reduction reactions occur simultaneously.
Oxidation reaction is defined as the reaction in which a substance looses its electrons. The oxidation state of the substance increases.
The oxidation of iron is represented as:
[tex]Fe\rightarrow Fe^{2+}+2e^-[/tex]
Reduction reaction is defined as the reaction in which a substance gains electrons. The oxidation state of the substance gets reduced.
The reduction of iron is represented as:
[tex]Fe^{2+}+2e^-\rightarrow Fe[/tex]
