Milk of magnesia is an example of which type of colloid?

Options

A. Gel
B. Emulsion
C. Sol
D. Foam

Explanation

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the type of colloid that Milk of Magnesia represents.

2. **Identifying the Components of Milk of Magnesia**:
- Milk of Magnesia is a mixture that consists of solid particles dispersed in a liquid medium.
- Here, the solid particles are the disperse phase, and the liquid is the dispersion medium.

3. **Classifying the Colloid**:
- Colloids can be classified into different types based on the states of the disperse phase and the dispersion medium.
- The main types of colloids include:
- **Sol**: Solid dispersed in a liquid.
- **Gel**: Liquid dispersed in a solid.
- **Emulsion**: Liquid dispersed in another liquid.
- **Foam**: Gas dispersed in a liquid.

4. **Determining the Type of Colloid for Milk of Magnesia**:
- Since Milk of Magnesia has a solid (magnesium hydroxide) dispersed in a liquid (water), it fits the definition of a **sol**.

5. **Conclusion**: Therefore, Milk of Magnesia is an example of a **sol**.

**Final Answer**: Milk of Magnesia is an example of a **sol**.

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