Question

carbon monoxide is a product of which combustion

Answer 1

Fossil fuels contain carbon (C) and hydrogen (H). During completecombustion carbon and hydrogen combine with oxygen (O2) to produce carbon dioxide (CO2) and water (H2O). During incomplete combustion part of the carbonis not completely oxidized producing soot or carbon monoxide (CO)
Hope it helps
Mark as Breanliest if I deserve

Answer 2

Due to incomplete combustion of carbon gives carbon monoxide