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प्रश्न
Write chemical reactions taking place in the extraction of copper from Cu2 S.
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उत्तर
The sulphide ores are roasted to give oxides
\[\ce{2Cu2S + 3O2 -> 2Cu2O + 2SO2}\]
The oxide can easily be reduced to metallic copper using coke
\[\ce{Cu2O + C -> 2Cu + CO}\]
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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?
Why is the extraction of copper from pyrites more difficult than that from its oxide ore through reduction?
Write chemical reactions taking place in the extraction of zinc from zinc blende.
The impurity that is added externally to remove the impurity already present in the ore is known as ____________.
For the metallurgical process of which of the ores calcined ore can be reduced by carbon?
(i) Haematite
(ii) Calamine
(iii) Iron pyrites
(iv) Sphalerite
Wrought iron is the purest form of iron. Write a reaction used for the preparation of wrought iron from cast iron. How can the impurities of sulphur, silicon and phosphorus be removed from cast iron?
The purest form of iron is prepared by oxidising impurities from cast iron in a reverberatory furnace. Which iron ore is used to line the furnace? Explain by giving reaction.
Why is sulphide ore of copper heated in a furnace after mixing with silica?
A cuprous ore among the following is:-
Assertion: For the extraction of iron, haematite ore is used.
Reason: Haematite is a carbonate ore of iron.
