Of the given options, choose the combination that contains metals whose ores are most appropriate for roasting. In other words, Sulphide ores are common for which kind of metals?

Ag, Cu, Pb

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Ag, Cu, Sn

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Ag, Mg, Pb

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Al, Cu, Pb

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Solution

The correct option is A
Ag, Cu, Pb

Let us look at the chief ores of the given metals:

Copper: $C u F e S_{2}$ (chalcopyrites).

Silver: $A g_{2} S$ (Argentite)

Lead: PbS (Galena)

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Similar questions

Choose the combination that contains metals whose ores are most appropriate for roasting.

How many of the following metals are extracted by self reduction process?
$P b, A u, M g, S n, F e, A l, A g, H g, N a, Z n, C u, C a$

P b + C u (N O_{3})_{2} \to P b (N O_{3})_{2} + C u

C u + A g (N O_{3})_{2} \to C u (N O_{3})_{2} + A g

Z n + P b (N O_{3})_{2} \to Z n (N O_{3})_{2} + P b

L i

K

C a

N a

M g

A l

Z n

F e

P b

C u

H g

A g

I

Z n (s) + C u {({N O}_{3})}_{2} (a q) \to C u (s) + Z n {({N O}_{3})}_{2} (a q)

I I

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