Multiple choice

Adsorption of gases on the surface of a finely divided metal like Pd, Au or Ni is called _____.

  1. occlusion

  2. volatility

  3. vaporization

  4. substitution
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A Correct answer
Explanation

Occlusion is the specific term used when gases are adsorbed onto the surface of finely divided metals, such as palladium or platinum.

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