NTA Abhyas 2020
- Exam
- NTA Abhyas
- Year
- 2020
- Subject
- Chemistry
- Chapter
- General Principles and Processes of Isolation of Metals
NTA Abhyas 2020 · Chemistry · General Principles and Processes of Isolation of Metals
The chemical composition of slag formed during the smelting process...
The chemical composition of slag formed during the smelting process in the extraction of copper is
Options
- A{\text{Cu}_{2} \text{O}\text{+}\text{FeS}
- B{\text{FeSiO}_{3}
- C{\text{CuFeS}_{2}
- D{\text{Cu}_{2} \text{S}\text{+}\text{FeO}
Correct answer
B. {\text{FeSiO}_{3}
Step-by-step solution
In the smelting process of copper from copper pyrites the following reactions takes place
{\text{Cu}_{2} \text{O}\text{+}\text{FeS} \to {\text{Cu}_{2} \text{S}\text{+}\text{FeO}
\text{2FeS}\text{+}{\text{3O}_{2} \to \text{2FeO}\text{+}{\text{2SO}_{2}
{\text{Cu}_{2} \text{O}\text{+}\text{FeS} \to {\text{Cu}_{2} \text{S}\text{+}\text{FeO}
\text{2FeS}\text{+}{\text{3O}_{2} \to \text{2FeO}\text{+}{\text{2SO}_{2}