Q33 / 230 · NTA Abhyas (NEET) 2020 · Botany · Environmental Issues

David is a hardworking environmentalist who has to travel 10 kilometres to his office daily. He drives to and fro from his destination in a sedan which releases a substantial amount of vehicular exhaust into the atmosphere. This concerns David due to the growing pollution in the city.
Which of the following measures can he take to reduce the emission of pollutants from his car?

  • A
    Platinum catalytic converter with unleaded petrol
  • B
    Platinum - palladium catalytic converter with leaded petrol
  • Correct answer
    C
    Platinum - palladium catalytic converter with unleaded petrol
  • D
    Platinum catalytic converter with leaded petrol

Solution

Catalytic converters reduces emission of poisonous gases by converting hydrocarbons into carbon dioxide and water and nitric oxide and carbon monoxide into carbon dioxide and nitrogen. These catalytic converters are made of expensive metals such as platinum-palladium and rhodium as the catalysts. Lead in the petrol inactivates the catalyst hence should be used with unleaded petrol.

Hence, the correct answer is option: 'C'.

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