Extraction of Metals by Pyrometallurgy and Application of Ellingham Diagram
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CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

321028 Carbon content of

1 Steel is in between those of cast iron and wrought iron
2 Cast iron is between those of steel and wrought iron
3 Wrought iron is in between those of steel and cast iron
4 Steel is higher than that of pig iron
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

321029 In the metallurgy of iron, the upper layer obtained in the bottom of blast furnace mainly contains:

1 \(\mathrm{\mathrm{CaSiO}_{3}}\)
2 Spongy iron
3 \(\mathrm{\mathrm{Fe}_{2} \mathrm{O}_{3}}\)
4 \(\mathrm{\mathrm{FeSiO}_{3}}\)
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

321030 Among the following, the main reactions occurring in blast furnace during extraction of iron from haematite are
(i) \(\mathrm{\mathrm{Fe}_{2} \mathrm{O}_{3}+3 \mathrm{CO} \rightarrow 2 \mathrm{Fe}+3 \mathrm{CO}_{2}}\)
(ii) \(\mathrm{\mathrm{FeO}+\mathrm{SiO}_{2} \rightarrow \mathrm{FeSiO}_{3}}\)
(iii) \(\mathrm{\mathrm{Fe}_{2} \mathrm{O}_{3}+3 \mathrm{C} \rightarrow 2 \mathrm{Fe}+3 \mathrm{CO}}\)
(iv) \(\mathrm{\mathrm{CaO}+\mathrm{SiO}_{2} \rightarrow \mathrm{CaSiO}_{3}}\)

1 (i) and (ii)
2 (iii) and (iv)
3 (ii) and (iii)
4 (i) and (iv)
KCET - 2019
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

321031 In the manufacture of iron from haematite,
limestone is added to act as :

1 Flux
2 Slag
3 A reducing agent
4 An oxidizing agent
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

321032 Which of the following taking place in the Blast furnace is endothermic?

1 \(\mathrm{\mathrm{CaCO}_{3} \rightarrow \mathrm{CaO}+\mathrm{CO}_{2}}\)
2 \(\mathrm{2 \mathrm{C}+\mathrm{O}_{2} \rightarrow 2 \mathrm{CO}}\)
3 \(\mathrm{\mathrm{C}+\mathrm{O}_{2} \rightarrow \mathrm{CO}_{2}}\)
4 \(\mathrm{\mathrm{Fe}_{2} \mathrm{O}_{3}+3 \mathrm{CO} \rightarrow 2 \mathrm{Fe}+3 \mathrm{CO}_{2}}\)
KCET - 2006
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CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

321028 Carbon content of

1 Steel is in between those of cast iron and wrought iron
2 Cast iron is between those of steel and wrought iron
3 Wrought iron is in between those of steel and cast iron
4 Steel is higher than that of pig iron
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

321029 In the metallurgy of iron, the upper layer obtained in the bottom of blast furnace mainly contains:

1 \(\mathrm{\mathrm{CaSiO}_{3}}\)
2 Spongy iron
3 \(\mathrm{\mathrm{Fe}_{2} \mathrm{O}_{3}}\)
4 \(\mathrm{\mathrm{FeSiO}_{3}}\)
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

321030 Among the following, the main reactions occurring in blast furnace during extraction of iron from haematite are
(i) \(\mathrm{\mathrm{Fe}_{2} \mathrm{O}_{3}+3 \mathrm{CO} \rightarrow 2 \mathrm{Fe}+3 \mathrm{CO}_{2}}\)
(ii) \(\mathrm{\mathrm{FeO}+\mathrm{SiO}_{2} \rightarrow \mathrm{FeSiO}_{3}}\)
(iii) \(\mathrm{\mathrm{Fe}_{2} \mathrm{O}_{3}+3 \mathrm{C} \rightarrow 2 \mathrm{Fe}+3 \mathrm{CO}}\)
(iv) \(\mathrm{\mathrm{CaO}+\mathrm{SiO}_{2} \rightarrow \mathrm{CaSiO}_{3}}\)

1 (i) and (ii)
2 (iii) and (iv)
3 (ii) and (iii)
4 (i) and (iv)
KCET - 2019
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

321031 In the manufacture of iron from haematite,
limestone is added to act as :

1 Flux
2 Slag
3 A reducing agent
4 An oxidizing agent
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

321032 Which of the following taking place in the Blast furnace is endothermic?

1 \(\mathrm{\mathrm{CaCO}_{3} \rightarrow \mathrm{CaO}+\mathrm{CO}_{2}}\)
2 \(\mathrm{2 \mathrm{C}+\mathrm{O}_{2} \rightarrow 2 \mathrm{CO}}\)
3 \(\mathrm{\mathrm{C}+\mathrm{O}_{2} \rightarrow \mathrm{CO}_{2}}\)
4 \(\mathrm{\mathrm{Fe}_{2} \mathrm{O}_{3}+3 \mathrm{CO} \rightarrow 2 \mathrm{Fe}+3 \mathrm{CO}_{2}}\)
KCET - 2006
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CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

321028 Carbon content of

1 Steel is in between those of cast iron and wrought iron
2 Cast iron is between those of steel and wrought iron
3 Wrought iron is in between those of steel and cast iron
4 Steel is higher than that of pig iron
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

321029 In the metallurgy of iron, the upper layer obtained in the bottom of blast furnace mainly contains:

1 \(\mathrm{\mathrm{CaSiO}_{3}}\)
2 Spongy iron
3 \(\mathrm{\mathrm{Fe}_{2} \mathrm{O}_{3}}\)
4 \(\mathrm{\mathrm{FeSiO}_{3}}\)
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

321030 Among the following, the main reactions occurring in blast furnace during extraction of iron from haematite are
(i) \(\mathrm{\mathrm{Fe}_{2} \mathrm{O}_{3}+3 \mathrm{CO} \rightarrow 2 \mathrm{Fe}+3 \mathrm{CO}_{2}}\)
(ii) \(\mathrm{\mathrm{FeO}+\mathrm{SiO}_{2} \rightarrow \mathrm{FeSiO}_{3}}\)
(iii) \(\mathrm{\mathrm{Fe}_{2} \mathrm{O}_{3}+3 \mathrm{C} \rightarrow 2 \mathrm{Fe}+3 \mathrm{CO}}\)
(iv) \(\mathrm{\mathrm{CaO}+\mathrm{SiO}_{2} \rightarrow \mathrm{CaSiO}_{3}}\)

1 (i) and (ii)
2 (iii) and (iv)
3 (ii) and (iii)
4 (i) and (iv)
KCET - 2019
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

321031 In the manufacture of iron from haematite,
limestone is added to act as :

1 Flux
2 Slag
3 A reducing agent
4 An oxidizing agent
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

321032 Which of the following taking place in the Blast furnace is endothermic?

1 \(\mathrm{\mathrm{CaCO}_{3} \rightarrow \mathrm{CaO}+\mathrm{CO}_{2}}\)
2 \(\mathrm{2 \mathrm{C}+\mathrm{O}_{2} \rightarrow 2 \mathrm{CO}}\)
3 \(\mathrm{\mathrm{C}+\mathrm{O}_{2} \rightarrow \mathrm{CO}_{2}}\)
4 \(\mathrm{\mathrm{Fe}_{2} \mathrm{O}_{3}+3 \mathrm{CO} \rightarrow 2 \mathrm{Fe}+3 \mathrm{CO}_{2}}\)
KCET - 2006
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CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

321028 Carbon content of

1 Steel is in between those of cast iron and wrought iron
2 Cast iron is between those of steel and wrought iron
3 Wrought iron is in between those of steel and cast iron
4 Steel is higher than that of pig iron
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

321029 In the metallurgy of iron, the upper layer obtained in the bottom of blast furnace mainly contains:

1 \(\mathrm{\mathrm{CaSiO}_{3}}\)
2 Spongy iron
3 \(\mathrm{\mathrm{Fe}_{2} \mathrm{O}_{3}}\)
4 \(\mathrm{\mathrm{FeSiO}_{3}}\)
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

321030 Among the following, the main reactions occurring in blast furnace during extraction of iron from haematite are
(i) \(\mathrm{\mathrm{Fe}_{2} \mathrm{O}_{3}+3 \mathrm{CO} \rightarrow 2 \mathrm{Fe}+3 \mathrm{CO}_{2}}\)
(ii) \(\mathrm{\mathrm{FeO}+\mathrm{SiO}_{2} \rightarrow \mathrm{FeSiO}_{3}}\)
(iii) \(\mathrm{\mathrm{Fe}_{2} \mathrm{O}_{3}+3 \mathrm{C} \rightarrow 2 \mathrm{Fe}+3 \mathrm{CO}}\)
(iv) \(\mathrm{\mathrm{CaO}+\mathrm{SiO}_{2} \rightarrow \mathrm{CaSiO}_{3}}\)

1 (i) and (ii)
2 (iii) and (iv)
3 (ii) and (iii)
4 (i) and (iv)
KCET - 2019
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

321031 In the manufacture of iron from haematite,
limestone is added to act as :

1 Flux
2 Slag
3 A reducing agent
4 An oxidizing agent
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

321032 Which of the following taking place in the Blast furnace is endothermic?

1 \(\mathrm{\mathrm{CaCO}_{3} \rightarrow \mathrm{CaO}+\mathrm{CO}_{2}}\)
2 \(\mathrm{2 \mathrm{C}+\mathrm{O}_{2} \rightarrow 2 \mathrm{CO}}\)
3 \(\mathrm{\mathrm{C}+\mathrm{O}_{2} \rightarrow \mathrm{CO}_{2}}\)
4 \(\mathrm{\mathrm{Fe}_{2} \mathrm{O}_{3}+3 \mathrm{CO} \rightarrow 2 \mathrm{Fe}+3 \mathrm{CO}_{2}}\)
KCET - 2006
Join With Us for More Updates
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

321028 Carbon content of

1 Steel is in between those of cast iron and wrought iron
2 Cast iron is between those of steel and wrought iron
3 Wrought iron is in between those of steel and cast iron
4 Steel is higher than that of pig iron
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

321029 In the metallurgy of iron, the upper layer obtained in the bottom of blast furnace mainly contains:

1 \(\mathrm{\mathrm{CaSiO}_{3}}\)
2 Spongy iron
3 \(\mathrm{\mathrm{Fe}_{2} \mathrm{O}_{3}}\)
4 \(\mathrm{\mathrm{FeSiO}_{3}}\)
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

321030 Among the following, the main reactions occurring in blast furnace during extraction of iron from haematite are
(i) \(\mathrm{\mathrm{Fe}_{2} \mathrm{O}_{3}+3 \mathrm{CO} \rightarrow 2 \mathrm{Fe}+3 \mathrm{CO}_{2}}\)
(ii) \(\mathrm{\mathrm{FeO}+\mathrm{SiO}_{2} \rightarrow \mathrm{FeSiO}_{3}}\)
(iii) \(\mathrm{\mathrm{Fe}_{2} \mathrm{O}_{3}+3 \mathrm{C} \rightarrow 2 \mathrm{Fe}+3 \mathrm{CO}}\)
(iv) \(\mathrm{\mathrm{CaO}+\mathrm{SiO}_{2} \rightarrow \mathrm{CaSiO}_{3}}\)

1 (i) and (ii)
2 (iii) and (iv)
3 (ii) and (iii)
4 (i) and (iv)
KCET - 2019
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

321031 In the manufacture of iron from haematite,
limestone is added to act as :

1 Flux
2 Slag
3 A reducing agent
4 An oxidizing agent
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

321032 Which of the following taking place in the Blast furnace is endothermic?

1 \(\mathrm{\mathrm{CaCO}_{3} \rightarrow \mathrm{CaO}+\mathrm{CO}_{2}}\)
2 \(\mathrm{2 \mathrm{C}+\mathrm{O}_{2} \rightarrow 2 \mathrm{CO}}\)
3 \(\mathrm{\mathrm{C}+\mathrm{O}_{2} \rightarrow \mathrm{CO}_{2}}\)
4 \(\mathrm{\mathrm{Fe}_{2} \mathrm{O}_{3}+3 \mathrm{CO} \rightarrow 2 \mathrm{Fe}+3 \mathrm{CO}_{2}}\)
KCET - 2006