Environment And Road Safety Education And Violence Against Women And Children And Drug Abuse 2021 Exam With Answers

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37.

Catalytic converter is called a 3 - way converter as it is used to reduce the concentration of __________ in the exhaust.

A: CO, CH₄ and H₂O

B: CO, HC and NOx

C: HC, CH₄ and H₂O

D: NOx, CH₄ and H₂O

The answer is: B

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Explanation

The correct answer is:

(B) CO, HC, and NOx.

A catalytic converter is called a 3-way converter because it is primarily used to reduce the concentration of carbon monoxide (CO), hydrocarbons (HC), and nitrogen oxides (NOx) in the exhaust gases emitted by internal combustion engines. The catalytic converter contains catalysts that facilitate chemical reactions to convert these pollutants into less harmful substances, such as carbon dioxide (CO2), water (H2O), and nitrogen (N2).