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Chromatography is a technique based on. ...

Chromatography is a technique based on.
(a)Adsorption and then desorption of solute
(b)Absorption of solute
(c)Hydration of solute
(d)Evaporation of solute

A

Adsorption and then desorption of solute

B

Absorption of solute

C

Hydration of solute

D

Evaporation of solute

Text Solution

AI Generated Solution

The correct Answer is:
To answer the question about what chromatography is based on, we can analyze the options provided and the concept of chromatography itself. ### Step-by-Step Solution: 1. **Understanding Chromatography**: - Chromatography is a technique used for separating components of a mixture based on their different interactions with a stationary phase and a mobile phase. 2. **Key Terms**: - **Adsorption**: This is the process where molecules adhere to the surface of a solid or liquid. - **Desorption**: This is the process where adsorbed molecules are released from the surface. 3. **Analyzing the Options**: - (a) **Adsorption and then desorption of solute**: This option describes the fundamental processes involved in chromatography, where the solute is first adsorbed onto a stationary phase and then desorbed during the separation process. - (b) **Absorption of solute**: Absorption involves the entire volume of a material, not just the surface, which is not the principle of chromatography. - (c) **Hydration of solute**: Hydration refers to the interaction of solute with water molecules, which is not relevant to the chromatography process. - (d) **Evaporation of solute**: Evaporation is a physical change and does not pertain to the separation technique of chromatography. 4. **Conclusion**: - The correct answer is (a) **Adsorption and then desorption of solute**. This accurately reflects the mechanism by which chromatography operates. ### Final Answer: Chromatography is a technique based on (a) Adsorption and then desorption of solute. ---
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