Question

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

• A. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
  
• B. Both Assertion and Reason are correct and Reason is not the correct explanation for Assertion.
  
• C. Assertion is correct but Reason is incorrect.
• D. Both Assertion and Reason are incorrect.

Answer 1

The correct option is B Both Assertion and Reason are correct and 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 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 catalytic converters greatly reduce pollution caused by automobiles, is a device used to reduce the emissions from an internal combustion engine, but it is not correct explanation of assertion.

Therefore, the correct answer is option B.