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← ScienceWhich consequence results when an irreversible catalyst poison contaminantes a packed bed reactor?
A)Oscillating reaction rate appears
B)Increased catalyst thermal runaway
C)Decreased effective catalyst activity✓
D)Products favor alternate pathways
💡 Explanation
Decreased activity results because the catalyst poison deactivates active sites via chemisorption, reducing reactant access; therefore reaction rate declines, rather than oscillation or promoting different pathways because the mechanism selectivity is impaired.
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