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प्रश्न
Why is sulphide ore of copper heated in a furnace after mixing with silica?
उत्तर
Iron oxide present as impurity in sulphide ore of copper forms slag which is iron silicate and copper is produced in the form of copper matte.
\[\ce{FeO + SiO2 -> FeSiO3}\]
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संबंधित प्रश्न
Is it true that under certain conditions, Mg can reduce SiO2 and Si can reduce MgO? What are those conditions?
Write chemical reactions taking place in the extraction of zinc from zinc blende.
In the extraction of copper from its sulphide ore, the metal is formed by the reduction of \[\ce{Cu2O}\] with ______.
Below point ‘A’ \[\ce{FeO}\] can ______.
How is copper extracted from low grade copper ores?
The mixture of compounds A and B is passed through a column of \[\ce{Al2O3}\] by using alcohol as eluant. Compound A is eluted in preference to compound B. Which of the compounds A or B, is more readily adsorbed on the column?
Explain the following:
Silica is added to the sulphide ore of copper in the reverberatory furnace.
Explain the following:
Carbon and hydrogen are not used as reducing agents at high temperatures.
Heating of MgCl2 6H2O in absence of HCl gives ______.
Assertion: For the extraction of iron, haematite ore is used.
Reason: Haematite is a carbonate ore of iron.
