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General Principles and processes of Isolation of Elements
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In the extraction of copper from its sulphide ore, the metal is finally obtained by the reduction of cuprous oxide with
A
carbon monoxide
B
copper $(I)$ sulphide
C
sulphur dioxide
D
iron $(II)$ sulphide.
(AIPMT-2012) (NEET-2015)
Solution
In the extraction of copper from its sulphide ore,
when ore is subjected to roasting, some of it is
oxidised to $C u_{2} O$ which reacts with the remaining
$Cu_{2} S$ (sulphide ore) to give copper metal.
$C u_{2} S+2 C u_{2} O \longrightarrow 6 C u+S O_{2} \uparrow$
In this process $Cu_2S$ behaves as reducing agent
Standard 12
Chemistry
