Advertisements
Advertisements
प्रश्न
Write chemical reactions taking place in the extraction of copper from Cu2 S.
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
\[\ce{Cu2O + C -> 2Cu + CO}\]
APPEARS IN
संबंधित प्रश्न
Write down the reactions taking place in different zones in the blast furnace during the extraction of iron.
Write chemical reactions taking place in the extraction of zinc from zinc blende.
How will you convert the following:
Zinc blende to Zinc metal
For the reduction of \[\ce{FeO}\] at the temperature corresponding to point D, which of the following statements is correct?
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
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.
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?
A cuprous ore among the following is:-
Heating of MgCl2 6H2O in absence of HCl gives ______.
\[\ce{Au + CN^- + H2O + O2 -> [Au(CN)2]^- + OH^-}\]
The number of CN− ions involved in the balanced equation is ______.
