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Pb and Sn are extracted from their chief ore by :A. carbon reduction and self reductionB. self reduction and carbon reductionC. electrolysis and self reductionD. self reduction and electrolysis

Answer» Correct Answer - B
The chief ore of lead is galena (PbS_ and is extracted with the help of self reduction. At the same time the chief ore of tin is tin stone `(SnO_(2))` and is isolated from that by carbon reduction (smelting).


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