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the nature of bonding forces in adsorpti...

the nature of bonding forces in adsorption are:

A

purely physical such as van der Waals' forces

B

purely chemical

C

both chemical and physical are possible

D

none of these

Text Solution

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The correct Answer is:
To solve the question regarding the nature of bonding forces in adsorption, we can break down the concepts step by step. ### Step-by-Step Solution: 1. **Understanding Adsorption**: - Adsorption is the process where molecules (adsorbates) adhere to the surface of a solid or liquid (adsorbent). 2. **Types of Adsorption**: - There are two main types of adsorption: - **Physisorption**: This involves weak Van der Waals forces. It is generally reversible and has a low enthalpy of adsorption. - **Chemisorption**: This involves the formation of strong chemical bonds. It is usually irreversible and has a high enthalpy of adsorption. 3. **Bonding Forces in Adsorption**: - In physisorption, the bonding forces are purely physical (Van der Waals forces). - In chemisorption, the bonding forces are purely chemical (covalent or ionic bonds). 4. **Conclusion**: - Since adsorption can occur through both physical (Van der Waals) and chemical (covalent/ionic) interactions, the nature of bonding forces in adsorption encompasses both types. 5. **Final Answer**: - Therefore, the correct answer to the question is that both chemical and physical bonding forces are involved in adsorption.
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