Carbon monoxide is very poisonous to humans as it combines with haemoglobin to form carboxyhaemoglobin , which starves the body of oxygen causing asphyxiation.
Carbon monoxide is produced by incomplete combustion of fossil fuels, especially in petrol engines.
Carbon monoxide is a strong reductant. It burns in oxygen with a blue flame to form carbon dioxide. In industry its power as a reductant is used in the blast furnace for the extraction of iron. The New Penguin Dictionary of Science 2. The New Penguin Dictionary of Science 3.