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← ScienceIn a catalytic converter, which mechanism facilitates the conversion of nitrogen oxides (NOx) into nitrogen gas (N2)?
A)Redox reactions promoted by metallic catalysts✓
B)Adsorption of NOx onto zeolite structures
C)Homolytic cleavage of NOx covalent bonds
D)Hydrogen bonding between NOx and ammonia
💡 Explanation
In a catalytic converter, redox reactions promoted by platinum and rhodium catalysts occur because they provide surface sites which lower activation energy for bond breaking and formation to convert NOx to N2 and O2. Therefore, redox reactions result, rather than adsorption, homolytic cleavage or hydrogen which are less prevalent mechanisms here.
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