Assertion: Through the use of catalytic converters, unburnt hydrocarbons is 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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Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

Assertion is correct but Reason is incorrect

Both Assertion and Reason are incorrect

answer is D.

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Detailed Solution

Concept: Unburned hydrocarbons are converted by catalytic converters into carbon monoxide, which is then converted into nitrogen oxides and water. In exhaust systems, catalytic converters are employed to provide a site for the oxidation and reduction of toxic by-products of fuel (such as nitrogen oxides, carbon monoxide, and hydrocarbons) into less dangerous compounds like carbon dioxide, water vapor, and nitrogen gas. Oxidative catalysts made of platinum or palladium are also used in catalytic converters.
Hence, option 4 is the correct answer

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