Solid butter is a colloid in which:

Options

A. A liquid is dispersed in solid
B. A solid is dispersed in liquid
C. A gas is dispersed in liquid
D. Some sugar is dispersed in water

Answer

To solve the question regarding the nature of solid butter as a colloid, we can follow these steps:

### Step 1: Understand the Definition of Colloids
Colloids are heterogeneous mixtures where small particles of one substance are dispersed in another substance. They consist of a dispersed phase (the particles) and a dispersion medium (the substance in which the particles are dispersed).

**Hint:** Remember that colloids can be classified based on the state of the dispersed phase and the dispersion medium.

### Step 2: Identify the Type of Colloid
Solid butter is classified as a gel colloid. In a gel, a liquid is dispersed in a solid. Therefore, we need to identify the dispersed phase and the dispersion medium in butter.

**Hint:** Think about what solid butter consists of. What is the main component, and what is it holding?

### Step 3: Determine the Dispersed Phase and Dispersion Medium
In the case of solid butter:
- The dispersed phase is the liquid (water and fat content).
- The dispersion medium is the solid (the structure of the butter).

This means that solid butter is a gel where liquid is dispersed in a solid.

**Hint:** Consider common examples of gels in everyday life to reinforce your understanding.

### Step 4: Analyze the Options Given
Now we can analyze the options provided in the question:
1. A liquid is dispersed in solid (Correct - this describes a gel).
2. A solid is dispersed in liquid (Incorrect - this describes a sol).
3. A gas is dispersed in liquid (Incorrect - this describes foam).
4. Some sugar is dispersed in water (Incorrect - this is a simple solution, not a colloid).

**Hint:** Compare each option to the definition of colloids and the specific characteristics of butter.

### Step 5: Conclusion
Based on the analysis, the correct classification of solid butter is that it is a gel colloid where a liquid is dispersed in a solid.

**Final Answer:** Solid butter is a colloid in which a liquid is dispersed in a solid (it is classified as a gel).