Question

Assertion (A): Air pollutants are either gaseous or particulate.

Reason (R): Catalytic converters greatly reduce emission from dieselvehicle.

Options

• Both A and R are true and R is the correct explanation of A.

• Both A and R are true but R is not the correct explanation of A.

• A is true but R is false.

• A is false but R is true.

Answer 1

A is true but R is false.

Explanation:

Air pollutants are broadly classified into two main physical forms: gaseous pollutants (like SO₂, NO_x and CO) and particulate pollutants (like dust, soot, and smoke). Therefore, Assertion (A) is True.

Catalytic converters are emission control devices fitted to vehicle exhausts (including diesel vehicles) to reduce the toxicity of the gases released. Therefore, Reason (R) is false.

Hence, A is true but R is false.