Motor vehicles equipped with catalytic c...

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

lead is a heavy metal

lead causes inactivation of catalyst

lead decreases the efficiency of vehicle

lead increases burning of petrol

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The correct Answer is:

Automobiles fitted with catalytic converter should not use leaded petrol because lead inactivates the catalyst of the converter.

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Assertion : Through the use of catalytic converters, unburnt hydrocarbons are changed into carbon monoxide which in turn is changed into nitrogen oxides and water. Reason : Motor vehicles equipped with catalytic converters should use leaded petrol to protect the catalyst from degradation.

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Observe the diagram of the catalytic converter and answer the questions which follow: (a) Name any two metals used as catalyst in the catalytic converter. (b) Name the gases that are released after passing the exhaust hydrocarbons through the catalytic converter. (c) Name the other poisonous gas which is missing (?) in the exhaust pollutant of an automobile in the above diagram?

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