Question

(11) Explain how the redox reactions in the catalytic converter decrease the amounts of carbon monoxide
and nitrogen dioxide in car exhausts​

Answer 1

Catalytic converters use reduction and oxidation (redox) reactions to reduce harmful emissions. They use a reduction catalyst composed of platinum and rhodium. It helps reduce nitrogen oxides (NOx) by removing nitrogen atoms from nitrogen oxide molecules (NO and NO2). This lets the free oxygen form oxygen gas (O2).