Question

H$_2$ can be added to ethylene in the presence of a heterogeneous catalyst such as solid. What might account for the initial attraction between the hydrogen molecules and the solid platinum?

• A. Hydrogen bonding
• B. Metallic bonding
• C. Van der Waals' attractions
• D. The plasma continuum effect

Hint:

In catalysis, surface-level interactions often involve continuum models of electrons on solids.

Answer 1

The Correct Option is D

The initial attraction is due to interaction at the electronic level with delocalized electrons on metal surfaces. This is best described by the plasma continuum effect in surface chemistry contexts.