The process of froth floatation and chromatography are based on

Options

A. Emulsification
B. Adsorption
C. Absorption
D. Both 2 and 3

Answer

To solve the question regarding the processes of froth flotation and chromatography, we need to analyze the principles behind each technique.

### Step-by-Step Solution:

1. **Understanding Froth Flotation**:
- Froth flotation is a process used primarily for the separation of hydrophobic materials from hydrophilic ones. In this process, air bubbles are introduced into a mixture of water and the minerals to be separated. The hydrophobic particles attach to the air bubbles and rise to the surface, forming a froth that can be removed.
- **Key Concept**: The separation is based on the difference in surface properties of the materials, specifically their affinity for water.

2. **Understanding Chromatography**:
- Chromatography is a technique used to separate components of a mixture based on their different interactions with a stationary phase and a mobile phase. The mixture is dissolved in a fluid (mobile phase) and passed through a stationary phase. Different components of the mixture travel at different rates, leading to separation.
- **Key Concept**: The separation relies on the adsorption of different components onto the stationary phase, which allows them to be separated based on their affinities.

3. **Identifying the Common Principle**:
- Both froth flotation and chromatography rely on the phenomenon of **adsorption**. In froth flotation, hydrophobic particles adsorb onto the air bubbles, while in chromatography, different components of the mixture adsorb onto the stationary phase to varying degrees.
- **Conclusion**: The correct answer to the question is **B: adsorption**.

### Final Answer:
The process of froth flotation and chromatography are based on **adsorption**.

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