Question

Iron is extracted from its oxide ores 

(i) Name two minerals of iron (Fe) 

(ii) Do you think that all minerals of iron are used as ores of iron? Substantiate. 

(iii) Name the purest form of iron. 

(iv) How do you obtain the above form of iron?

Answer 1

(i) Hematite (Fe2O₃), magnetite (Fe₃O₄), siderite (FeCO₃). 

(ii) No. All minerals of iron are not used as ores of iron. Only those minerals from which the metals can be extracted economically are used as ores. 

(iii) Wrought iron the purest form of iron. 

(iv) Wrought iron is prepared by heating cast iron with hematite.