Which statement correctly describes the role of catalytic converters in reducing vehicle emissions?

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Question

Which statement correctly describes the role of catalytic converters in reducing vehicle emissions?

Accepted Answer

They use platinum and rhodium to convert CO and NOₓ into CO₂ and N₂ — Catalytic converters use platinum and rhodium catalysts to convert toxic carbon monoxide (CO) and nitrogen oxides (NOₓ) into less harmful carbon dioxide (CO₂) and nitrogen (N₂), and also oxidise unburned hydrocarbons. They do not use filtration, water scrubbing, or electrical ignition. Option A describes a particulate filter, not a catalytic converter.

Answer

They use platinum and rhodium to convert CO and NOₓ into CO₂ and N₂

Answer

They filter particulate carbon from exhaust gases using a ceramic mesh

Answer

They dissolve acidic gases in water before release into the atmosphere

Answer

They combust unburned hydrocarbons using an electrical spark

One real Co-ordinated Science (Double Award) question.No signup. 30 seconds.

One real Co-ordinated Science (Double Award) question.
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