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pd & sn are extracted from theircheif ore by |
| We know that the metals, tin and lead have the low melting points. The cheif ore of Lead is Lead sulphide- PbS, also called galena Ore are crushed and concentrated by froth flotation typically to 70 % or more. Tin is obtained chiefly from the mineral cassiterite, where it occurs as tin oxide,SnO2.Tin is extracted from its ore by heating it with carbon or carbon monoxide. |
