Respuesta :

Answer: Reduced

Explanation: Oxidation reaction is defined as the reaction in which a substance looses its electron. The oxidation state of the substance gets increased.

[tex]M\rightarrow M^{n+}+ne^- [/tex]

Reduction reaction is defined as the reaction in which a substance gains electrons. The oxidation state of the substance gets reduced.

[tex]M^{n+}+ne^-\rightarrow M[/tex]

Given :[tex]M+e^{-1}\rightarrow M^{-1}[/tex]

Thus as in the given reaction the oxidation state of the metal has decreased from 0 to-1, it is getting reduced.

Answer: The substance M is reduced.

Explanation:

Oxidation reaction is defined as the reaction in which an atom looses its electrons. The oxidation number of the atom gets increased during this reaction.

[tex]X\rightarrow X^{n+}+ne^-[/tex]

Reduction reaction is defined as the reaction in which an atom gains electrons. The oxidation number of the atom gets reduced during this reaction.

[tex]X^{n+}+ne^-\rightarrow X[/tex]

We are given a chemical equation:

[tex]M+e^-\rightarrow M^{-1}[/tex]

As, the substance is gaining electron and also its oxidation state is getting reduced. So, it is undergoing reduction reaction

Hence, the substance M is reduced.