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Which 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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