Butter is an example of :-

Options

A. Water oil emulsion
B. Liquid-liquid colloidal system
C. Oil water emulsion
D. Solid-solid colloidal system

Answer

To determine what type of colloid butter is, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Colloids**:
- Colloids are mixtures where one substance is dispersed evenly throughout another. They can be classified into different types based on the states of the dispersed phase and the dispersion medium.

2. **Identifying the Type of Colloid**:
- The question asks specifically about butter. We need to identify the nature of butter in terms of colloidal classification.

3. **Defining Emulsions**:
- Emulsions are a specific type of colloid formed when two immiscible liquids (liquids that do not mix) are combined. They can be classified into two categories:
- Oil in water (O/W)
- Water in oil (W/O)

4. **Analyzing Butter**:
- Butter is primarily composed of fat (which is oil) and water. In butter, the fat droplets are dispersed in water, making it a water-in-oil emulsion.

5. **Conclusion**:
- Therefore, butter is classified as a water-in-oil emulsion.

### Final Answer:
Butter is an example of a water-in-oil emulsion.

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