Bredig's arc method involves

Options

A. Only dispersion of metal
B. Only condensation of metal
C. Dispersion as well as condensation
D. Neither dispersion nor condensation

Answer

**Step-by-Step Solution:**

1. **Understanding Bredig's Arc Method**:
- Bredig's arc method is a technique used to prepare colloidal solutions, particularly of metals like gold and silver.

2. **Process of the Method**:
- In this method, an electric arc is created between two electrodes made of the metal that is to be dispersed.
- The intense heat generated by the arc vaporizes the metal, which then condenses into fine particles in the surrounding medium (usually water).

3. **Types of Colloidal Solutions**:
- Bredig's arc method can be used for both dispersion (breaking down bulk material into colloidal particles) and condensation (forming colloidal particles from vapor).

4. **Conclusion**:
- Therefore, the Bredig's arc method is primarily used for the preparation of colloidal solutions of metals, and it can be applied in both dispersion and condensation processes.

5. **Correct Answer**:
- The correct answer to the question regarding Bredig's arc method is that it involves the preparation of colloidal solutions of metals.

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