Question

Which is not a pollutant from exhaust of motor vehicle?

• A. SO${}_2$
• B. CO
• C. Fly ash
• D. Hydrocarbon gas

Answer 1

The correct option is C Fly ash

Fly ash is produced due to the incomplete burning or combustion of the fossil fuels. The ash contains the carbon particles or flecks which are suspended in the air. The pollutants which are released from the exhaust of the motor vehicle are particulate matter, SO${}_2$, NO${}_x$, CO, etc.

Thus, the correct answer is option C.