Q1: Choice the correct answers for the following questions:1. Why is limestone added to the blast furnace?(to remove oxygen from the iron ore, to produce carbon monoxide ,to react with impurities andform slage,)2. Which chemical change corresponds to a reduction?(changing copper oxide into copper in a smelter, carbon monoxide reacts with iron oxide toform carbon dioxide in the blast furnace).3. Which is oxidised in the blast furnace extraction of iron?(air, haematite, limestone, coke)4. Which element is a metal that cannot be extracted using carbon?( tin, sodium, copper, iron)5. Why is hot air blown into a blast furnace?(to melt the iron ore, to react with impurities in the iron, to react with coke and release energy)6. Iron ore is called? (bauxite, haematite, malachite, ferrotite).6.7.Which statement is TRUE: (iron is obtained from its ore by oxidation using electrolysis, iron is obtainefrom ore by reduction using carbon, aluminium is obtained from its ore by oxidation using electrolysis8. In which reaction does an oxidation and a reduction produce the same product?(iron(III) oxide + carbon monoxide => iron + carbon dioxide, calcium carbonate + silicon dioxide ==>calcium silicate + carbon dioxide, carbon dioxide + carbon => carbon monoxide, carbon + oxygen==> carbon dioxide).9. A mineral from which a metal can be extracted, is called? (rock, mixture, an ore, compound).10. First material known to be used by man (a) Cotton (b) Bronze (c) Iron (d) Rock.11. Eiectrometallurgy ismetal electrodeposition, the extraction of metal from ores.method that uses electrical energy, the field concerned with the processes of12. Most important zinc ore is.... Sphalerite, dilute sulphuric acid, Marmatite, calamine.13. Smelting of zinc produce two layers first zinc containswhile other lead contain..lead-zinc sinter- imperial melting, Pyrometallurgical treatment- (Hydrometallurgy, leaching- purification,melting – casting.14. High gold grade 99.999% purity get using....method.Millerprocess,Wohlwillprocess,electronics, sodium hypochlorite.15. One of the applications of rare earth metals is .. X-ray and MRI scanning systems, metal extraction,metal purification, slag remove.(20 mol

Answered: Image /qna-images/answer/219c4bb5-4aea-4b89-a001-54db09a31c97.jpg

Q1: Choice the correct answers for the following questions: 1. Why is limestone added to the blast furnace? (to remove oxygen from the iron ore, to produce carbon monoxide ,to react with impurities and form slage,)

Q1: Choice the correct answers for the following questions: 1. Why is limestone added to the blast furnace? (to remove oxygen from the iron ore, to produce carbon monoxide ,to react with impurities and form slage,)

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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