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← ScienceWhich outcome occurs when a hydrogen atom approaches a catalyst containing a high density of partially filled d-orbitals?
A)Increased dissociation of molecular hydrogen✓
B)Hydrogen becomes almost totally inert
C)Destabilization of catalyst surface occurs
D)Spin decoherence affects orbital hybridization
💡 Explanation
Increased dissociation occurs because of orbital overlap; the partially filled d-orbitals of the catalyst interact with the hydrogen's s-orbital, weakening the H-H bond via induced electron localization effects. Therefore, dissociation increases rather than inertness because of this lowered activation energy.
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