Question

Explain with examples the term oxidation potential.

Answer 1

When a metal atom M present on the electrode loses n electrons, it gets oxidised into Mⁿ⁺ ion as shown below.

\[\ce{M_{(s)} -> M{^{n+}_{(aq)}} + ne-}\]

The resulting ion, Mⁿ⁺, enters the solution, and the electrons released during the oxidation process gather at the electrode. The procedure keeps going until the solution’s built-up charge prevents more action. Consequently, a negative potential is developed in the electrode. The resulting potential is known as an oxidation potential, and this kind of electrode assembly is referred to as an oxidation electrode.