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Functioning of a Scrubber

Why is it des...

Question

Why is it desirable to use unleaded petrol in vehicles fitted with catalytic converters?

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Solution

Lead can quickly deposit onto the converter thereby poisoning the catalyst. As a result, in a very short time, the catalyst will be of no use. Hence, it is desirable to use unleaded petrol in vehicles fitted with catalytic converters.

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Q. With its very large population of vehicular traffic, Delhi is one of the most polluted cities of the world. Which of the following steps were taken by the government to reduce vehicular pollution in Delhi ?
(i) Switching over the entire fleet of public transport i.e., buses autorickshaws, from diesel to CNG
(ii) Phasing out of old vehicles
(iii) Use of unleaded petrol in vehicles
(iv) Use of low sulphur petrol and diesel in vehicles
(v) Use of catalytic converters in vehicles
(vi) Application of stringent pollution level norms for vehicles such as Euro-II norms, etc.

Q. How do automobiles fitted with catalytic converters reduce air pollution? Suggest the best fuel for such vehicles.

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