Tag: refining of metals
Questions Related to refining of metals
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reduces $SnO _2$ to Sn
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oxidizes impurities like iron and removes as scum
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uses green poles
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uses brown poles
Correct Option: A,B,C
Explanation:
Poling: A refining process of crude metal for removing metal oxide impurities by stirring molten metal in a ladle with a pole of green wood (poles).
In the poling process, the reduction of oxides to metal atom will be done.
Ex: Extraction of copper from copper oxide and Sn from $SnO _2$.
Hence options A,B & C are correct.