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- 1. Multiple Choice
Which are the correct 4 Raw Materials used in a blast furnace?
Hot Air
Coke
Limestone
Iron Ore
Cryolite
- 2. Multiple Choice
What is the purpose of adding iron ore?
As a source of iron
To remove impurities
To react with coke to form carbon monoxide
To reduce iron oxide to iron
- 3. Multiple Choice
What is the purpose of adding coke?
As a source of iron
To remove impurities
To react with coke to form carbon monoxide
To reduce iron oxide to iron
- 4. Multiple Choice
What is the purpose of adding limestone?
As a source of iron
To remove impurities
To react with coke to form carbon monoxide
To reduce iron oxide to iron
- 5. Multiple Choice
What is the purpose of adding hot air?
As a source of iron
To remove impurities
To react with coke to form carbon monoxide
To reduce iron oxide to iron
- 6. Multiple Choice
Which gas reduces iron ore?
CO
CO2
O2
C
- 7. Multiple Choice
What is the name for the waste products formed in the Blast Furnace?
Slag
Debris
Haematite
Cryolite
- 8. Multiple Choice
Which 2 equations correctly show the formation of carbon monoxide in the blast furnace?
C(s) + O2(g) -----> CO2(g)
2C(s) + O2(g) -----> 2CO2(g)
C(s) + CO2(g) -----> CO(g)
C(s) + CO2(g) -----> 2CO(g)
- 9. Multiple Choice
Which 2 equations correctly show the formation of iron in the blast furnace?
Fe2O3(s) + 3CO(g) -----> 3CO2(g) + 2Fe(s)
2Fe2O3(s) + 6CO(g) -----> 6CO2(g) + 2Fe(s)
Fe2O3(s) + 3C(s) -----> 3CO2(g) + 2Fe(s)
Fe2O3(s) + 3C(s) -----> 3CO(g) + 2Fe(s)
- 10. Multiple Choice
Which 2 equations correctly show the formation of slag in the blast furnace?
CaCO3(s) -----> CO2(g) + CaO(s)
CaCO3(s) -----> CO(g) + CaO2(s)
CaO2(s) + SiO(s) -----> CaSiO3(s)
CaO(s) + SiO2(s) -----> CaSiO3(s)
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