Multiple choice

Corrosion is an example of

  1. polarizability

  2. physisorption

  3. chemisorption

  4. dissociation

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Chemisorption is a sub-class of adsorption, driven by a chemical reaction occurring at the exposed surface. A new chemical species is generated at the adsorbant surface e.g., corrosion, metallic oxidation. The strong interaction between the adsorbate and the substrate surface creates new types of electronic bonds - ionic or covalent, depending on the reactive chemical species involved.

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