Question:
In the extraction of copper, its sulphide ore is heated in a reverberatory furnace after mixing with silica to:
In the extraction of copper, its sulphide ore is heated in a reverberatory furnace after mixing with silica to:
Updated On: Jul 15, 2024
- remove $FeO$ as $FeSiO _3$
- separate $CuO$ as $CuSiO _3$
- decrease the temperature needed for roasting of $Cu _2 S$
- remove calcium as $CaSiO _3$
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The Correct Option is A
Solution and Explanation
The copper ore contains iron, it is mixed with silica before heating in reverberatory furnace. slags off as .
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Concepts Used:
General Principles and Processes of Isolation of Elements
What are Ores and Minerals?
Minerals are the naturally occurring, homogeneous inorganic solid substances. They are having a definite chemical composition and crystalline structure, hardness and color. For example, copper pyrite, calamine, etc.
Impurities in an ore are called gauge. The removal of a gauge from the ore is called concentration ore.
Several steps are involved in the extraction of pure metal from ores. Major steps are as follows –
- Concentration of the ore
- Isolation of the metal from its concentrated ore
- Purification of the metal