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Oxidation Number Method

Formation of ...

Question

Formation of metallic copper from the sulphide ore in the commercial metallurgical process involves:

C u_{2} S

+ \frac{3}{2} O_{2}

\to

C u_{2} O +

S O_{2}

;

C u_{2} O

C

\to

2 C u

C O

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C u_{2} S +

\frac{3}{2} O_{2}

\to

C u_{2} O +

S O_{2}

;

2 C u_{2} O +

C u_{2} S

\to

6 C u +

S O_{2}

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C u_{2} S + 2 O_{2} \to C u S O_{4}

;

C u S O_{4} + C u_{2} S \to 3 C u + 2 S O_{2}

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C u_{2} S + \frac{3}{2} O_{2} \to 2 C u + S O_{2}

;

C u_{2} O + C O \to 2 C u + C O_{2}

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Solution

The correct option is B $C u_{2} S +$ $\frac{3}{2} O_{2}$ $\to$ $C u_{2} O +$ $S O_{2}$ ; $2 C u_{2} O +$ $C u_{2} S$ $\to$ $6 C u +$ $S O_{2}$
The commercial metallurgical process for the formation of metallic copper from the sulphide ore involves oxidation of $C u_{2} S$ to $C u_{2} O$ and auto reduction of a mixture of $C u_{2} S$ and $C u_{2} O$ to copper metal.
$C u_{2} S + \frac{3}{2} O_{2} \to C u_{2} O + S O_{2}$
$2 C u_{2} O + C u_{2} S \to 6 C u + S O_{2}$

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Similar questions

Name the process used for the formation of blister $C u$ by following reaction :(unbalanced reactions)

$2 C u_{2} S + 3 O_{2} \to C u_{2} O + S O_{2}$

C u_{2} O + C u_{2} S \to C u + S O_{2}

C u_{2} O

C u_{2} S

C u_{2} O

C u_{2} S

C u_{2} O

C u_{2} S

A : F e O + S i O_{2} \to F e S i O_{3}

B : 2 F e S + 3 O_{2} \to 2 F e O + 2 S O_{2}

C : 2 C u_{2} S + 3 O_{2} \to 2 C u_{2} O + 2 S O_{2}

D : 2 C u_{2} O + C u_{2} S \to 6 C u + S O_{2}

Select reactions actually taking place :

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