How the reduction potential of an electrode can be decreased?

Explanation

To understand how the reduction potential of an electrode can be decreased, we can follow these steps:

### Step 1: Understand Reduction Potential
Reduction potential is the tendency of a chemical species to acquire electrons and thereby be reduced. A higher reduction potential indicates a greater tendency to gain electrons.

### Step 2: Write the Nernst Equation
The Nernst equation relates the reduction potential (E) of an electrode to the standard reduction potential (E°) and the concentrations of the reactants and products involved in the half-reaction. For a metal M with charge X, the equation can be expressed as:

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