By which process colloids of metals are prepared?

Explanation

To prepare colloids of metals, the following steps outline the process known as the "Bredig's arc method" or "electrical disintegration method":

### Step-by-Step Solution:

1. **Understanding the Process**: The Bredig's arc method is a technique used to prepare colloidal solutions of metals like gold, silver, and platinum. This method involves the use of electrical disintegration.

2. **Setting Up the Apparatus**: The apparatus consists of two metal electrodes made of the metal you want to create a colloid of (e.g., gold, silver). These electrodes are submerged in water.

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