Carbon(II)oxide is found is found from Cloze (1): JXUwMDMxJXUwMDA3JXUwMDBkJXUwMDBjJXUwMDAyJXUwMDFkJXUwMDFjJXUwMDA5JXUwMDExJXUw MDEx combustion of fuels like petrol,charcoal, Liquefied Petroleum Gas/LPG. Carbon monoxide is a strong Cloze (2): JXUwMDJhJXUwMDE3JXUwMDAxJXUwMDExJXUwMDE2JXUwMDBhJXUwMDA3JXUwMDA5 agent. It reduces the oxides of the less active metals to their respective metals and itself gets oxidised to Cloze (3): JXUwMDNiJXUwMDAyJXUwMDEzJXUwMDEwJXUwMDBkJXUwMDAxJXUwMDRlJXUwMDQ0JXUwMDBkJXUw MDA2JXUwMDE3JXUwMDExJXUwMDBkJXUwMDAx in the process. It is used as a reducing agent in the extraction of metals. Carbon monoxide reduces the metal oxides to metals. Usually Cloze (4): JXUwMDNiJXUwMDBjJXUwMDA0JXUwMDBl is used to generate this gas. In this process coke combines with Cloze (5): JXUwMDM3JXUwMDE3JXUwMDAxJXUwMDFlJXUwMDAyJXUwMDBi to form carbon dioxide, which gets reduced to carbon monoxide due to the lack of oxygen