Question

What is the significance of using unleaded petrol in motor vehicles with catalytic converter?

Options

• Lead in petrol activates catalyst in catalytic converter.

• Lead in petrol inactivates the catalyst in catalytic converter.

• Unleaded petrol is cheaper than leadcontaining petrol.

• Unleaded petrol is more combustible than leaded petrol.

Answer 1

Lead in petrol inactivates the catalyst in catalytic converter.

Explanation:

Lead compounds from leaded petrol deposit on the catalyst surface in the converter, poisoning it and making it inactive for controlling exhaust emissions.