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← ScienceWhich outcome results when a catalyst's active site degradation?
A)Decreased reaction rate✓
B)Formation byproduct increases
C)Equilibrium shifts reactants
D)Increased catalyst selectivity
💡 Explanation
Decreased reaction rate occurs because catalysts lower activation energy via surface adsorption. Active site fouling blocks adsorption sites through disrupting Van der Waals bonds, therefore lowering rate, rather than shifting equilibrium or increasing desired product formation.
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