In the extraction of copper, the smelt formed in the blast furnace contains:

C u_{2} S +

little

F e S

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C u_{2} S +

little

F e O

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C u_{2} O +

little

F e S

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C u_{2} O +

little

F e O

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Solution

The correct option is A $C u_{2} S +$ little $F e S$
In the extraction of copper, raw material used for the Bessemer converter is matte ( $C u_{2} S + F e S (l i t t l e)$ ), where matte is formed in the blast furnace.

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When copper pyrite is roasted in excess of air, a mixture of $C u_{2} S$ and $F e O$ are formed. FeO is present as impurity. This can be removed as slag during Smelting. The flux added to form slag is

Q. Among the reactions (A) - (D), the reaction(s) that does/do not occur in the blast furnace during the extraction of iron is/are:

(A) C a O + S i O_{2} \to C a S i O_{3}

(B) 3 F e_{2} O_{3} + C O \to 2 F e_{3} O_{4} + C O_{2}

(C) F e O + S i O_{2} \to F e S i O_{3}

(D) F e O \to F e + \frac{1}{2} O_{2}

Q. What happens when a freshly prepared

F e ({O H)}_{3}

is shaken with a little amount of dilute solution of

{F e C I}_{3}

Q. Heating mixture of

C u_{2} O

and

C u_{2} S

will give:

Q. Copper is extracted from the ore copper pyrite by smelting in a blast furnace. The flux used and the slag formed are :

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In the extraction of copper, the smelt formed in the blast furnace contains:

The correct option is A Cu2S + little FeSIn the extraction of copper, raw material used for the Bessemer converter is matte (Cu2S+FeS(little)), where matte is formed in the blast furnace.

The correct option is A $C u_{2} S +$ little $F e S$
In the extraction of copper, raw material used for the Bessemer converter is matte ( $C u_{2} S + F e S (l i t t l e)$ ), where matte is formed in the blast furnace.