chiaruenpes4iy
contestada

5. ? is not a changing process in metal smelting.
A. Iron smelting in a furnace
B. Heating iron in oxygen
C. Metal oxide reacting with coke at high temperature
D. Carbon monoxide reducing metal oxide at high temperature.​

Respuesta :

maheeniqbal
C. Metal oxide reacting with coke in a high temperature because I don’t think it reacts with coke during metal smelting (not 100% sure though)