Why is partial roasting of sulphide ore done in metallurgy of copper?
- Auto-reduction of $Cu_2O$ formed is carried out by remaining $Cu_2S$ in the reaction
- $Cu$ is separated out by partial reduction due to sedimentation
- Due to difference in gravity $Cu_2O$ and $Cu_2S$ are separated
- Complete roasting cannot be done in one step hence partial roasting is done
The Correct Option is A
Solution and Explanation
Top Questions on General Principles and Processes of Isolation of Elements
A parallel plate capacitor with plate area \(A\) and plate separation \(d = 2\) m has a capacitance of \(4\mu F\). The new capacitance of the system if half of the space between them is filled with a dielectric material of dielectric constant \(K = 3\) (as shown in the figure) will be:
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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