Sulfide ores are common for the metals.
(IIT-JEE, 2013)

Ag, Cu and Pb

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Ag, Cu and Sn

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Ag, Mg and Pb

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Al, Cu and Pb

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Solution

The correct option is A Ag, Cu and Pb
Sulphide ores of Ag, Pb and Cu are, respectively, argentite $(A g_{2} S),$ galena (PbS) and copper glance $(C u_{2} S)$

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Similar questions

Q. Sulfide ores are common for the metals.
(IIT-JEE, 2013)

Q. Brass is an alloy of:
(a) Cu and Sn
(b) Cu and Pb
(c) Pb and Sn
(d) Zn and Cu

A solution containing 1 mol per litre of each $C u (N O_{3})_{2}, A g N O_{3},$ and $H g_{2} (N O_{3})_{2}$ is being electrolyzed by using inert electrodes. The values of standard electrode potentials in volts (reduction potential) are
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(IIT-JEE, 1984)

L i

K

C a

N a

M g

A l

Z n

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P b

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H g

A g

I

. The reaction

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

will occur.

I I

. Zinc and copper are both transition metals.

How many of the following metals are extracted by self reduction process?
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Sulfide ores are common for the metals. (IIT-JEE, 2013)

The correct option is A Ag, Cu and PbSulphide ores of Ag, Pb and Cu are, respectively, argentite (Ag2S), galena (PbS) and copper glance (Cu2S)

Sulfide ores are common for the metals.
(IIT-JEE, 2013)

The correct option is A Ag, Cu and Pb
Sulphide ores of Ag, Pb and Cu are, respectively, argentite $(A g_{2} S),$ galena (PbS) and copper glance $(C u_{2} S)$