What is the reason for the stability of colloidal sols?

Explanation

**Step-by-Step Text Solution:**

1. **Understanding Colloidal Sols:**
Colloidal sols are mixtures where tiny particles (colloidal particles) are dispersed in a continuous medium (solvent). These particles are larger than molecules but smaller than visible particles.

2. **Charge on Colloidal Particles:**
The colloidal particles in a sol carry an electric charge, which can be either positive or negative. This charge is crucial for the stability of the colloidal system.

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