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Miracle Learning Centre Chemistry Tuition Question on Extraction and Properties of Metals. (O Level Chemistry Tuition/ IP Chemistry Tuition)

1 Iron is extracted from its ore in a blast furnace. The raw materials in this process are iron ore, coke, limestone and air.

(a) Write an overall equation for the blast furnace process. _____________________________________________________________ (b) Describe the role of the following raw materials in this process. (i) limestone ________________________________________________ (ii) coke ________________________________________________ (c) Steel, an alloy of iron, is a very important structural material. What is a major disadvantage of using steel as a structural material? _____________________________________________________________ Miracle Learning Centre Answer to Chemistry Tuition Question on Extraction and Properties of Metals . (O Level Chemistry Tuition/ IP Chemistry Tuition) 1.a.i.Fe2O3 + 3CO  2Fe + 3CO2 1.b.i.limestone: decomposes to form lime (CaO) which reacts with the acidic impurities to form slag. b.ii.coke: reacts with oxygen to produce carbon monoxide which acts as the reducing agent. c.Iron in steel rusts relatively quickly. Learn from our Chemistry Tuition Questions and Answers. Miracle Learning Centre Call 6463 8756 or sms 8128 8342/9839 9908. (Specialist in Science and Maths) for Primary, Secondary and JC levels. Miracle Learning Centre specialises in Chemistry tuition, Physics tuition, Maths tuition and Science tuition Classes.