Assertion :A suspended particulate matter (SPM) is an important pollutant released by diesel vehicles. Reason: Catalytic converters greatly reduce pollution caused by automobiles.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.

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

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Assertion is correct but Reason is incorrect.

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Both Assertion and Reason are incorrect.

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Solution

The correct option is B Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.
Assertion is correct as suspended particulate matter (SPM) is an important pollutant released by diesel vehicles. SPM is a microscopic solid or liquid matter suspended in the Earth's atmosphere. They are finely divided solids or liquids that may be dispersed through the air from combustion processes, industrial activities or natural sources.Particulate matter includes dust, smoke, soot, pollen and soil particles.
Reason is correct as well but it is not correct explanation of assertion. Catalytic converters greatly reduce pollution caused by automobiles, is a device used to reduce the emissions from an internal combustion engine, they are involved in reducing gaseous pollutants by converting CO⟶CO2, NO2⟶N2 etc. Thus, decrease the amount of pollutant. They cannot reduce emission of SPM. Hence, option B is correct.

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Similar questions

Assertion :Suspended particulate matter (SPM) is an important pollutant released by diesel vehicles.

Reason :Catalytic converters greatly reduce pollution caused by automobiles.

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ASSERTION: n-Pentane and n-Hexane belong to a homologous series.

REASON: n-Pentane and n-Hexane belong to the same class of hydrocarbons and they differ by a - $C H_{2}$ - group.

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Reason (R) We cannot determine order from balanced chemical equation.

(a) Both assertion and reason are correct and the reason is correct explanation of assertion
(b) Both assertion and reason are correct, but reason does not explain assertion.
(c) Assertion is correct, but reason is incorrect
(d) Both assertion and reason are incorrect
(e) Assertion is incorrect but reason is correct.

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