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Which one of the following set of metals deposits an anode mud during the process of electrolytic refining of copper?
Which one of the following set of metals deposits an anode mud during the process of electrolytic refining of copper?
Updated On: Jun 14, 2022
- $ Sn $ and $ Ag $
- $ Pb $ and $ Zn $
- $ Ag $ and $ Au $
- $ Fe $ and $ Ni $
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The Correct Option is C
Solution and Explanation
During electrolytic refining of copper, impurities of silver $(Ag)$, gold $(Au)$, platinum $(Pt)$, selenium $(Se$ being less electropositive are not affected by electrolytic solution of acidified copper sulphate. Thus, these settle down under the anode as anode mud or anode sludge
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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
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