Extraction of Metals - Result Question 22
####22. Sulphide ores are common for the metals
(2013 Adv.)
(a) $Ag, Cu$ and $Pb$
(b) $Ag, Cu$ and $Sn$
(c) $Ag, Mg$ and $Pb$
(d) $Al, Cu$ and $Pb$
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Solution:
Element | Ores | Name |
---|---|---|
$Ag$ | $Ag _2 S$ | Argentite |
$Cu$ | $CuFeS _2$ | Copper pyrites |
$Pb$ | $PbS$ | Galena |
$Sn$ | $SnO _2$ | Cassiterite |
$Mg$ | $MgCO _3 \cdot CaCO _3$ | Dolomite |
$Al$ | $Al _2 O _3 \cdot x H _2 O$ | Bauxite |