CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS
321042
The most durable metal plating on iron to protect against corrosion is
1 Nickel plating
2 Tin plating
3 Copper plating
4 Zinc plating
Explanation:
Galvanisation is the process of deposition of zinc metal on the surface of \(\mathrm{\mathrm{Fe}}\) to prevent it from rusting etc.
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS
321043
In the metallurgy of iron, the slag is
1 \(\mathrm{\mathrm{FeSiO}_{3}}\)
2 \(\mathrm{\mathrm{CaCO}_{3}}\)
3 \(\mathrm{\mathrm{CaSiO}_{3}}\)
4 \(\mathrm{\mathrm{CaO}}\)
Explanation:
Conceptual Questions
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS
321044
The temperature of the slag zone in the metallurgy of iron using blast furnace is
1 \(\mathrm{1500-1600^{\circ} \mathrm{C}}\)
2 \(\mathrm{400-700^{\circ} \mathrm{C}}\)
3 \(\mathrm{800-1000^{\circ} \mathrm{C}}\)
4 \(\mathrm{1200-1500^{\circ} \mathrm{C}}\)
Explanation:
Slag formation zone is the central zone in the blast furnace where the temperature varies from \(\mathrm{800-1000^{\circ} \mathrm{C}}\). Here, limestone decomposes into \(\mathrm{\mathrm{CaO}}\) and \(\mathrm{\mathrm{CO}_{2}}\). \(\rm{\mathrm{CaCO}_{3} \stackrel{1000^{\circ} \mathrm{C}}{\longrightarrow} \mathrm{CaO}+\mathrm{CO}_{2}}\) \(\mathrm{\mathrm{CaO}}\) acts as a flux as it combines with silica present as an impurity (gangue) to form a fusible slag of \(\mathrm{\mathrm{CaSiO}_{3}}\). \(\rm{\mathrm{CaO}+\mathrm{SiO}_{2} \stackrel{1000^{\circ} \mathrm{C}}{\longrightarrow} \underset{\text { slag }}{\mathrm{CaSiO}_{3}}}\)
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS
321042
The most durable metal plating on iron to protect against corrosion is
1 Nickel plating
2 Tin plating
3 Copper plating
4 Zinc plating
Explanation:
Galvanisation is the process of deposition of zinc metal on the surface of \(\mathrm{\mathrm{Fe}}\) to prevent it from rusting etc.
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS
321043
In the metallurgy of iron, the slag is
1 \(\mathrm{\mathrm{FeSiO}_{3}}\)
2 \(\mathrm{\mathrm{CaCO}_{3}}\)
3 \(\mathrm{\mathrm{CaSiO}_{3}}\)
4 \(\mathrm{\mathrm{CaO}}\)
Explanation:
Conceptual Questions
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS
321044
The temperature of the slag zone in the metallurgy of iron using blast furnace is
1 \(\mathrm{1500-1600^{\circ} \mathrm{C}}\)
2 \(\mathrm{400-700^{\circ} \mathrm{C}}\)
3 \(\mathrm{800-1000^{\circ} \mathrm{C}}\)
4 \(\mathrm{1200-1500^{\circ} \mathrm{C}}\)
Explanation:
Slag formation zone is the central zone in the blast furnace where the temperature varies from \(\mathrm{800-1000^{\circ} \mathrm{C}}\). Here, limestone decomposes into \(\mathrm{\mathrm{CaO}}\) and \(\mathrm{\mathrm{CO}_{2}}\). \(\rm{\mathrm{CaCO}_{3} \stackrel{1000^{\circ} \mathrm{C}}{\longrightarrow} \mathrm{CaO}+\mathrm{CO}_{2}}\) \(\mathrm{\mathrm{CaO}}\) acts as a flux as it combines with silica present as an impurity (gangue) to form a fusible slag of \(\mathrm{\mathrm{CaSiO}_{3}}\). \(\rm{\mathrm{CaO}+\mathrm{SiO}_{2} \stackrel{1000^{\circ} \mathrm{C}}{\longrightarrow} \underset{\text { slag }}{\mathrm{CaSiO}_{3}}}\)
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS
321042
The most durable metal plating on iron to protect against corrosion is
1 Nickel plating
2 Tin plating
3 Copper plating
4 Zinc plating
Explanation:
Galvanisation is the process of deposition of zinc metal on the surface of \(\mathrm{\mathrm{Fe}}\) to prevent it from rusting etc.
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS
321043
In the metallurgy of iron, the slag is
1 \(\mathrm{\mathrm{FeSiO}_{3}}\)
2 \(\mathrm{\mathrm{CaCO}_{3}}\)
3 \(\mathrm{\mathrm{CaSiO}_{3}}\)
4 \(\mathrm{\mathrm{CaO}}\)
Explanation:
Conceptual Questions
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS
321044
The temperature of the slag zone in the metallurgy of iron using blast furnace is
1 \(\mathrm{1500-1600^{\circ} \mathrm{C}}\)
2 \(\mathrm{400-700^{\circ} \mathrm{C}}\)
3 \(\mathrm{800-1000^{\circ} \mathrm{C}}\)
4 \(\mathrm{1200-1500^{\circ} \mathrm{C}}\)
Explanation:
Slag formation zone is the central zone in the blast furnace where the temperature varies from \(\mathrm{800-1000^{\circ} \mathrm{C}}\). Here, limestone decomposes into \(\mathrm{\mathrm{CaO}}\) and \(\mathrm{\mathrm{CO}_{2}}\). \(\rm{\mathrm{CaCO}_{3} \stackrel{1000^{\circ} \mathrm{C}}{\longrightarrow} \mathrm{CaO}+\mathrm{CO}_{2}}\) \(\mathrm{\mathrm{CaO}}\) acts as a flux as it combines with silica present as an impurity (gangue) to form a fusible slag of \(\mathrm{\mathrm{CaSiO}_{3}}\). \(\rm{\mathrm{CaO}+\mathrm{SiO}_{2} \stackrel{1000^{\circ} \mathrm{C}}{\longrightarrow} \underset{\text { slag }}{\mathrm{CaSiO}_{3}}}\)
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS
321042
The most durable metal plating on iron to protect against corrosion is
1 Nickel plating
2 Tin plating
3 Copper plating
4 Zinc plating
Explanation:
Galvanisation is the process of deposition of zinc metal on the surface of \(\mathrm{\mathrm{Fe}}\) to prevent it from rusting etc.
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS
321043
In the metallurgy of iron, the slag is
1 \(\mathrm{\mathrm{FeSiO}_{3}}\)
2 \(\mathrm{\mathrm{CaCO}_{3}}\)
3 \(\mathrm{\mathrm{CaSiO}_{3}}\)
4 \(\mathrm{\mathrm{CaO}}\)
Explanation:
Conceptual Questions
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS
321044
The temperature of the slag zone in the metallurgy of iron using blast furnace is
1 \(\mathrm{1500-1600^{\circ} \mathrm{C}}\)
2 \(\mathrm{400-700^{\circ} \mathrm{C}}\)
3 \(\mathrm{800-1000^{\circ} \mathrm{C}}\)
4 \(\mathrm{1200-1500^{\circ} \mathrm{C}}\)
Explanation:
Slag formation zone is the central zone in the blast furnace where the temperature varies from \(\mathrm{800-1000^{\circ} \mathrm{C}}\). Here, limestone decomposes into \(\mathrm{\mathrm{CaO}}\) and \(\mathrm{\mathrm{CO}_{2}}\). \(\rm{\mathrm{CaCO}_{3} \stackrel{1000^{\circ} \mathrm{C}}{\longrightarrow} \mathrm{CaO}+\mathrm{CO}_{2}}\) \(\mathrm{\mathrm{CaO}}\) acts as a flux as it combines with silica present as an impurity (gangue) to form a fusible slag of \(\mathrm{\mathrm{CaSiO}_{3}}\). \(\rm{\mathrm{CaO}+\mathrm{SiO}_{2} \stackrel{1000^{\circ} \mathrm{C}}{\longrightarrow} \underset{\text { slag }}{\mathrm{CaSiO}_{3}}}\)