A colloidal system involves :-

Options

A. A state of dissolution
B. A state of dipersion
C. A state of supension
D. None

Answer

To solve the question regarding what a colloidal system involves, we can break it down step by step:

### Step 1: Understanding Colloidal Systems
A colloidal system is a mixture where one substance (the dispersed phase) is distributed evenly throughout another substance (the dispersion medium).

### Step 2: Identifying the Phases
In a colloidal system, there are two main components:
- **Dispersed Phase (Internal Phase)**: This is the substance that is dispersed in the medium. It can be solid, liquid, or gas.
- **Dispersion Medium (Continuous Phase)**: This is the substance in which the dispersed phase is distributed. It is usually a liquid but can also be a solid or gas.

### Step 3: Analyzing the Options
Now, let's analyze the options provided in the question:
- **A: State of dissolution** - This is incorrect because dissolution refers to the process of a solute dissolving in a solvent, which is different from a colloidal system.
- **B: State of dispersion** - This is correct as colloidal systems are characterized by the dispersion of one phase within another.
- **C: State of suspension** - This is incorrect because a suspension involves larger particles that can settle out, unlike the smaller particles in a colloidal system.
- **D: None of these** - This is also incorrect since option B is correct.

### Step 4: Conclusion
Based on the analysis, the correct answer is **B: State of dispersion**.

### Final Answer:
A colloidal system involves a state of dispersion.

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