The dispersion medium in aerosol is…………….

Answer

To solve the question regarding the dispersion medium in aerosol, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Definition of Aerosol**:
- An aerosol is a type of colloid in which fine particles (solid or liquid) are dispersed in a gas.

2. **Identify Components of Colloids**:
- Colloids consist of two main components: the dispersing medium and the dispersed phase. The dispersing medium is the substance in which the particles are suspended, while the dispersed phase consists of the particles themselves.

3. **Determine the Dispersing Medium in Aerosols**:
- In the case of aerosols, the dispersing medium is always a gas. This is because aerosols are defined as a mixture of tiny solid or liquid particles suspended in a gas.

4. **Provide Examples of Aerosols**:
- Common examples of aerosols include smoke (where solid particles are dispersed in air) and mist (where tiny droplets of liquid are dispersed in air).

5. **Conclude the Answer**:
- Therefore, the dispersion medium in aerosol is a gas.

### Final Answer:
The dispersion medium in aerosol is a gas.

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