AMPP Basic Corrosion Certification Practice Exam

Question: 1 / 645

What is the outcome of a cathodic reaction?

Loss of electrons

Formation of anions

Gain of electrons

In a cathodic reaction, the primary outcome is the gain of electrons by the species participating in the reaction. This process occurs at the cathode in electrochemical cells, where reduction takes place. During reduction, a chemical species accepts electrons, which effectively decreases its oxidation state. This is fundamental to various electrochemical processes, including corrosion protection mechanisms such as cathodic protection.

When electrons are gained, the chemical species may change its form, often leading to the formation of neutral atoms or molecules from ions. This process is crucial for understanding corrosion dynamics and the operation of batteries, fuel cells, and other electrochemical systems where the cathodic reaction plays a significant role.

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Formation of cations

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