If liquid is dispersed in solid medium, then this is called as:

Options

A. Sol
B. Emulsion
C. Liquid aerosol
D. Gel

Explanation

To solve the question "If liquid is dispersed in solid medium, then this is called as:", we need to identify the type of colloid formed when a liquid is dispersed in a solid.

### Step-by-Step Solution:

1. **Understanding Colloids**:
- Colloids are mixtures where one substance is dispersed evenly throughout another. They consist of two phases: the dispersed phase and the continuous phase.

2. **Identifying the Phases**:
- In this case, the liquid is the dispersed phase, and the solid is the continuous phase. The dispersed phase is present in a smaller amount compared to the continuous phase.

3. **Types of Colloids**:
- There are different types of colloids based on the states of the dispersed and continuous phases:
- **Sol**: Solid dispersed in liquid.
- **Emulsion**: Liquid dispersed in liquid.
- **Aerosol**: Liquid dispersed in gas.
- **Gel**: Liquid dispersed in solid.

4. **Determining the Correct Term**:
- Since we are specifically looking for the case where a liquid is dispersed in a solid medium, the correct term is **gel**.

5. **Example of Gel**:
- A common example of a gel is cheese, where liquid (like whey) is trapped within a solid matrix.

### Final Answer:
The correct term for a colloid where a liquid is dispersed in a solid medium is **gel**.

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