First slide

Air Pollution and its Control

Question

Motor vehicles equipped with catalytic converter are advised to use unleaded petrol because

Easy

A

lead causes inactivation of catalyst
B

lead reduces the emission of poisonous gases
C

lead is a heavy metal
D

lead decreases the efficiency of vehicle

Solution

Catalytic converter is a device incorporated in the exhaust system of a motor vehicle, containing a catalyst for converting pollutant gases into less harmful ones. Motor vehicles equipped with catalytic converter are advised to use unleaded petrol because lead causes inactivation of catalyst (platinum, palladium, and rhodium) in a catalytic converter.

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