Colloid:
- A colloid is a combination in which one ingredient is suspended throughout another material by microscopically distributed insoluble particles.
Butter:
- Butter is a colloid because it disperses as a liquid or fat.
- A colloidal dispersion of a liquid in either a liquid or a solid is known as an emulsion.
- An emulsifying agent is required for a stable emulsion.
- In a solid emulsion, butter is an example of a liquid in a solid emulsion.
Hence, butter is a colloid as it disperses as a liquid or fat.