Which one of the following from an internisic colloid ?

Options

A. Sulphur
B. `As_(2)S_(3)`
C. `Fe(OH)_(3)`
D. Egg albumin

Explanation

To determine which of the following forms an intrinsic colloid, we first need to understand what intrinsic (or lyophilic) colloids are. Intrinsic colloids are those that have a strong affinity for the dispersion medium (usually water) and can easily form stable colloidal solutions.

### Step-by-Step Solution:

1. **Understand the Definition of Intrinsic Colloids**:
- Intrinsic colloids, also known as lyophilic colloids, are colloidal systems where the dispersed phase has a strong attraction to the dispersion medium. Examples include proteins, starch, and gelatin.

2. **Identify the Options**:
- The question likely provides multiple options (though not listed here). Common examples of colloids include:
- Starch in water
- Silver iodide in water
- Smoke in air
- Milk

3. **Analyze Each Option**:
- **Starch in water**: This forms a stable colloidal solution because starch is a lyophilic colloid.
- **Silver iodide in water**: This is a lyophobic colloid, as it does not have a strong affinity for water and does not form a stable colloidal solution.
- **Smoke in air**: This is an aerosol, which is a type of colloid but is not intrinsic.
- **Milk**: This is an emulsion and can be considered a colloid, but it is not classified as intrinsic.

4. **Select the Correct Answer**:
- Based on the analysis, **starch in water** is the intrinsic colloid among the options provided.

### Final Answer:
**Starch in water forms an intrinsic colloid.**