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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
Write down the reactions taking place in different zones in the blast furnace during the extraction of 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.
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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 ______.
For the reduction of \[\ce{FeO}\] at the temperature corresponding to point D, which of the following statements is correct?
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?
Write down the reactions taking place in Blast furnace related to the metallurgy of iron in the temperature range 500-800 K.
A cuprous ore among the following is:-
\[\ce{Au + CN^- + H2O + O2 -> [Au(CN)2]^- + OH^-}\]
The number of CN− ions involved in the balanced equation is ______.
