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← ScienceWhich consequence results when high sulfur inhibits catalytic converters?
A)Reduced NOx conversion efficiency✓
B)Increased hydrocarbon decomposition rate
C)Elevated catalyst surface area production
D)Enhanced carbon monoxide oxidation rate
💡 Explanation
Sulfur poisoning results in reduced NOx conversion through competitive adsorption; therefore, lower catalyst activity occurs because sulfur blocks active catalytic sites, thus reducing NOx conversion, rather than enhancing CO oxidation.
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