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← ScienceWhich risk increases when reactive molecules are adsorbed on a catalyst?
A)Electron orbital hybridization becomes unfavorable✓
B)Catalyst surface area effectiveness declines
C)Thermal runaway propagation accelerates
D)Bulk diffusion resistance becomes significant
💡 Explanation
When molecules adsorb, orbital overlap dictates reaction pathways; unfavorable electron orbital hybridization inhibits critical steps, because steric hindrance introduces high activation energy barriers, therefore reactivity decreases, rather than alternatives such as increased diffusion limitations, which occur under different conditions.
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