Question

In vehicles, catalytic converter are used to

• A. Increase mileage
• B. Convert $C{O}_2$ to carbonates
• C. Increase efficiency of lead petrol
• D. Convert CO to $C{O}_2$

Answer 1

The correct option is D Convert CO to $C{O}_2$

Catalytic convertors consist of expensive metals like platinum- palladium and rhodium as catalysts which are fitted in the automobiles to reduce the emission of poisonous gases. When the exhaust passes through catalytic convertor, unburnt hydrocarbons get converted into carbon dioxide and water, carbon monoxide is converted to carbon dioxide and nitric oxide is converted to nitrogen gas.

So, the correct answer is 'Convert CO to CO₂'.