While your siblings are eagerly anticipating their first batches of Gold and diamond, you are still yet to get a single gram of copper! Armed with the know-how of extracting copper, you smelt the calcine from the roasting process in a blast furnace. What is the smelt composed of?

Pure Cu metal

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Crude Cu metal

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$C u_{2} S$ and FeS

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Matte Copper

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Solution

The correct option is D
Matte Copper

The roasted ore is mixed with Silica and powdered coke (to deter the oxidation of FeO to $F e_{2} O_{3}$ so that FeO could be removed as $F e S i O_{3}$ )

FeO + $S i O_{2}$ $\to$ $F e S i O_{3}$

The temperature is high enough to melt the slag. Below the layer of slag is molten mass known as Copper Matte. It consists of $C u_{2} S$ and FeS

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Similar questions

While your siblings are eagerly anticipating their first batches of Gold and diamond, you are still yet to get a single gram of copper! Armed with the know-how of extracting copper, you smelt the calcine from the roasting process in a blast furnace. What is the smelt composed of?

Q. Copper is extracted from copper pyrites. After roasting, the ore is mixed with silica and coke and then smelted in a blast furnace. The matte obtained from the blast furnace is charged into a silica lined converter. Some silica is also added and a hot air blast is thrown into the mixture to obtain blister copper which is purified by electrorefining.

During roasting, copper pyrites are ultimately converted into a mixture of:

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

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