Extraction of copper by smelting uses silica as an additive to remove:

{C u}_{2} O

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F e S

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F e O

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{C u}_{2} S

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Solution

The correct option is C $F e O$
$F e O$ is gangue and $S i O_{2}$ is flux to form slag $F e S i O_{3}$ .

$F e O basic impurity + S i O_{2} acidic flux ⟶ F e S i O_{3} slag$

Hence, the correct option is $C$

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Similar questions

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. During the extraction of copper, the impurity (FeS) is removed as slag by mixing the contaminated copper ore with silica and coke. The molecular formula of slag is:

Q. Silica is added to roasted copper ores during smelting in order to remove:

Q. Silica is added to roasted copper ore during extraction in order to remove:

Q. FeO is the impurity in the extraction of Cu from copper pyrite. Which of the following flux is used for the removal of impurity ?

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Extraction of copper by smelting uses silica as an additive to remove:

The correct option is C FeOFeO is gangue and SiO2 is flux to form slag FeSiO3.FeObasic impurity+SiO2acidic flux⟶FeSiO3slagHence, the correct option is C

The correct option is C $F e O$
$F e O$ is gangue and $S i O_{2}$ is flux to form slag $F e S i O_{3}$ .

$F e O basic impurity + S i O_{2} acidic flux ⟶ F e S i O_{3} slag$

Hence, the correct option is $C$