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JEE Advanced · 2013 · 02 Jun 2013 · Paper 1 · General Principles and Processes of Isolation of Metals

Sulfide ores are common for the metals

(A) $A g, C u$ and Pb✓ Correct
(B) $A g, C u$ and $S n$
(C) $A g, M g$ and Pb
(D) $A l, C u$ and $P b$

Answer: (A)

Solution

Silver, copper, and lead commonly occur as sulfide ores:

Silver: $A g_{2} S$ (argentite)
Copper: $C u F e S_{2}$ (chalcopyrite)
Lead: $P b S$ (galena)

These metals have a strong affinity for sulfur and are found in nature primarily as sulfides.

JEE Advanced · 2013 · 02 Jun 2013 · Paper 1 · Single correct option

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