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NEETChemistrySurface Chemistry

What is an example to illustrate the transition from physical to chemical adsorption?

Options

  1. ANitrogen adsorption on graphite
  2. BOxygen adsorption on aluminum
  3. CDihydrogen adsorption on nickel
  4. DCarbon dioxide adsorption on silica gel

Correct answer

C. Dihydrogen adsorption on nickel

Step-by-step solution

The paragraph provides an example of dihydrogen being first adsorbed on nickel by van der Waals’ forces and then dissociating to form hydrogen atoms held on the surface by chemisorption.

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