Question

Chemisorption involves the formation of a bond between gaseous molecules or atoms and the solid surface for which high energy is required. Thus it is also referred as:

• A. van der Waal adsorption
• B. positive adsorption
• C. activated adsorption
• D. passive adsorption

Answer 1

The correct option is C activated adsorption

• Chemisorption is a kind of adsorption which involves a chemical reaction between the surface and the adsorbate. New chemical bonds are generated at the adsorbent surface.
  

• The chemical bonds may be covalent or ionic in nature. Chemisorption involves high energy of activation and is, therefore, often referred to as activated adsorption.