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.

Question

Accepted Answer

Both Assertion and Reason are incorrect. The assertion is wrong because catalytic converters oxidize unburnt hydrocarbons and carbon monoxide, and reduce nitrogen oxides; they do not convert hydrocarbons into carbon monoxide and then into nitrogen oxides and water. The reason is also wrong because leaded petrol damages catalyst surfaces, so catalytic converters require unleaded fuel.

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.

Solution

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