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General Principles And Processes of Isolation Of Elements
Indicate the principle behind the method used for the refining of zinc.
Zinc is refined using electrolytic refining process. In this process, pure zinc is transported to cathode from the impure sample at the anode. The more basic metal remains in the electrolytic solution and the less basic metals, present as impurities, precipitate as anode mud.
|
Electrode |
Chemical Reaction |
|
Anode |
Zn Zn2+ +2e - |
|
Cathode |
Zn2+ 2e- + Zn |
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What criterion is followed for the selection of the stationary phase in chromatography?
What is the role of cryolite in the metallurgy of aluminium?
Why is zinc not extracted from zinc oxide through reduction using CO?
What is the role of graphite rod in the electrometallurgy of aluminium?
Predict conditions under which Al might be expected to reduce MgO.
Define the term gangue or matrix.
Define the term flux.
Deine the term slag.
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