Question
- Why are catalytic converters recommended for vehicles?
- Why should such vehicles use only unleaded petrol?
- Why is CNG preferred to diesel as a fuel in vehicles?
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Answer
- Catalytic converters are recommended in automobiles to reduce air pollution by their exhaust.
- Catalytic converters have metals like rhodium, palladium and platinum, which convert the unburnt hydrocarbons into carbon dioxide and water, carbon monoxide into carbon dioxide and nitric oxides into nitrogen.
- Only unleaded petrol must be used in such vehicles as lead would inactivate the catalyst.
- CNG is preferred as a fuel because:
- It burns efficiently in the vehicles and very little of it is left unburnt.
- It cannot be adulterated.
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