Give two examples of multimolecular colloides .

Answer

To answer the question of providing two examples of multimolecular colloids, we can follow these steps:

### Step-by-Step Solution:

1. **Define Colloids**:
- A colloid is a heterogeneous mixture where one substance (the dispersed phase) is distributed evenly throughout another substance (the dispersing medium).

2. **Understand Multimolecular Colloids**:
- Multimolecular colloids consist of particles that are smaller than 1 nanometer but aggregate to form larger particles that fall within the colloidal size range (between 1 nanometer and 1000 nanometers). This aggregation allows many small molecules to come together to form a larger particle.

3. **Identify Characteristics**:
- Multimolecular colloids are typically lyophobic, meaning they do not have a strong affinity for the dispersing medium. They are formed from the aggregation of many small particles.

4. **Provide Examples**:
- Two common examples of multimolecular colloids are:
- **Gold Sol**: This is a colloidal solution where gold particles are dispersed in a liquid medium. The gold particles aggregate to form a colloidal suspension.
- **Sulfur Sol**: Similar to gold sol, this is a colloidal solution where sulfur particles are dispersed in a liquid medium, forming a colloidal suspension.

5. **Conclude**:
- Therefore, the two examples of multimolecular colloids are Gold Sol and Sulfur Sol.

### Final Answer:
The two examples of multimolecular colloids are:
1. Gold Sol
2. Sulfur Sol