Physics-Metallurgy-Important Points-One Liners-Oct 4, 2017
Physics-Metallurgy-Important Points-One Liners 1-A mineral from which a metal can be extracted economically and conveniently is called Ore. 2-Roasting- It is a pyrochemical process in which the ore is heated in the presence of oxygen or air below its melting point. 3-Smelting: The process of reducing the oxide with coke is called smelting. … Read more