Question

Catalytic converter used for controlling pollution is used in

• A. Thermal plants
• B. Chimneys
• C. Brick kilns
• D. Motor vehicles

Answer 1

The correct option is D Motor vehicles

The catalytic converter is used to convert toxic and harmful pollutant into less toxic emission before they are released in the atmosphere from the engine of motor vehicles. The catalytic converter works as two types- reduction catalyst and the oxidation catalyst. The catalyst is a substance that causes or accelerates a chemical reaction without being unaffected. The catalytic converter reduces carbon monoxide hydrocarbon and nitrous oxides. The reduction catalyst separates nitrogen atom out of nitrous oxides and freezes oxygen, the nitrogen atom combines with another nitrogen atoms forming Nitrogen. The oxidation catalyst reduces the carbon monoxide by oxidizing by reacting carbon monoxide with oxygen in exhaust gas forming carbon dioxide.

Hence, the correct answer is 'Motor vehicles'.