Platinum and rhodium are commonly used together in catalytic converters, particularly in three-way converters, which target carbon monoxide (CO), unburnt hydrocarbons (HC), and nitrogen oxides (NOx).
Catalytic converter transforms waste gases from the engines of many cars into carbon dioxide, nitrogen and water. The catalyst is made of
Asked in UPSC CISF AC EXE 2019 · Topic: Metals, Minerals, Ores: Properties, Uses (Alloys: definition, purpose, composition, and uses of common alloys (e.g., brass, bronze, stainless steel, duralumin))
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Answer: C. platinum and rhodium
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