Why is ferric chloride preferred over potassium chloride in case of a cut leading to bleeding?

Explanation

**Step-by-Step Solution:**

1. **Understanding the Problem**: When a cut leads to bleeding, it is essential to stop the bleeding quickly. The substances used for this purpose can influence the coagulation process of blood.

2. **Nature of Blood**: Blood is a colloidal solution, which means it consists of small particles (like cells and proteins) dispersed in a liquid medium. The particles in blood carry charges: hemoglobin and other impurities have a positive charge, while the dispersion medium has a negative charge.

3. **Coagulation Process**: Coagulation refers to the process of clumping together of these particles to form a larger mass (precipitate) that can be easily removed or settled. For coagulation to occur, the particles must be neutralized so that they can come together and increase in size.

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