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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
How is ‘cast iron’ different from ‘pig iron’?
The choice of a reducing agent in a particular case depends on thermodynamic factor. How far do you agree with this statement? Support your opinion with two examples.
The impurity that is added externally to remove the impurity already present in the ore is known as ____________.
In the extraction of copper from its sulphide ore, the metal is formed by the reduction of \[\ce{Cu2O}\] with ______.
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
How is copper extracted from low grade copper ores?
Why is sulphide ore of copper heated in a furnace after mixing with silica?
Explain the following:
Carbon and hydrogen are not used as reducing agents at high temperatures.
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.
