Question:
Extraction of zinc from zinc blende is achieved by
Extraction of zinc from zinc blende is achieved by
Updated On: Jul 28, 2022
- roasting followed by self-reduction
- electrolytic reduction
- roasting followed by reduction with carbon
- roasting followed by reduction with another metal
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The Correct Option is C
Solution and Explanation
Extraction of Zn from zinc blends is achieved by roasting followed by reduction with carbon. Reactions involved are:
$ {2ZnS+3O2->[heat]2ZnO + 2SO2 (Roasting)}$
$ {ZnO + C(Coke)->[heat]Zn + CO (Re duction)}$
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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
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