Dyeting of fibre involves the process of

Options

A. adsorption
B. absorption
C. sorption
D. all of these

Answer

### Step-by-Step Solution:

1. **Understanding the Process of Dyeing**:
- Dyeing of fibers refers to the process of adding color to textile materials. This process is essential in the textile industry to produce colored fabrics.

2. **Identifying the Mechanism**:
- The key mechanism involved in dyeing fibers is adsorption. Adsorption is a surface phenomenon where molecules of a substance (the adsorbate) adhere to the surface of another substance (the adsorbent).

3. **Defining Adsorbate and Adsorbent**:
- In the context of dyeing:
- The dye itself acts as the **adsorbate**. This is the substance that is being added to the fiber to impart color.
- The fiber, which is being dyed, acts as the **adsorbent**. This is the material that holds or retains the dye on its surface.

4. **Conclusion**:
- Therefore, the process of dyeing of fiber involves the process of **adsorption**.

5. **Final Answer**:
- The correct answer is **adsorption**.