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Sulphide ore ...

Question

Sulphide ore is common for _______ metal. (Cu, Mg, Na, K)
Choose the correct one.

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Solution

Argentite ( $A g_{2} S$ )
Galena ( $P b S$ )
Chalcocite ( $C u_{2} S$ )
Copper pyrite (chalco pyrite) [ $C u F e S_{2}$ ]

∴ Cu is the correct answer.

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