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← ScienceWhich outcome results when increased surface passivation halts catalyst regeneration?
A)Reduced conversion rate of reactants✓
B)Increased selectivity for side products
C)Enhanced catalyst thermal stability
D)Decreased catalyst support material surface
💡 Explanation
Reduced conversion occurs because surface passivation blocks active sites via the Langmuir-Hinshelwood mechanism which limits reactant accessibility. Therefore reaction rates slow causing diminished conversion; rather than selectivity alteration linked directly to blocked shape selection by the catalyst.
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