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← ScienceWhich risk increases when an automotive catalytic converter reaches end-of-life?
A)Increased atmospheric nitrous oxide emissions✓
B)Decreased unburned hydrocarbon combustion
C)Lean misfires within engine cylinders
D)Premature degradation tolambda oxygen sensors
💡 Explanation
Increased atmospheric nitrous oxide emissions occur, because catalyst deactivation inhibits redox reactions (Reductants Oxidation), therefore N₂ formation diminishes rather than N₂O, since the metal active sites are poisoned.
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