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प्रश्न
What is 'copper matte' ?
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उत्तर
During extraction of copper from cuprous oxide in a reverberatory furnace, cuprous oxide is mixed with silica and heated. This leads to separation of iron oxide as iron silicate (slag) and the copper obtained after this procedure is known as copper matte. It contains Cu2S and FeS. It is then put in a silica-lined converter to remove the remaining FeO and FeS present in the matte as slag (FeSiO3).
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संबंधित प्रश्न
What is the role of limestone in the extraction of iron from its oxides?
Describe the roles of the following: SiO2 in the extraction of copper from copper matte
Differentiate between “minerals” and “ores”.
Explain the following methods to protect metals from corrosion:
Galvanization
What are the differences between minerals and ores?
The sulphide ore of iron is ____________.
Although carbon and hydrogen are better reducing agents but they are not used to reduce metallic oxides at high temperatures. Why?
Which of the following is not an ore of magnesiuim?
Match List I with List II.
| List - I | List - II | ||
| a. | Siderite | I. | FeCO3 |
| b. | Malachite | II. | CuCO3 · Cu(OH)2 |
| c. | Sphalerite | III. | ZnS |
| d. | Calamine | IV. | ZnCO3 |
Choose the correct answer from the option given below.
Calamine and Malachite, respectively, are the ores of ______.
