Advertisements
Advertisements
प्रश्न
The main reactions occurring in blast furnace during extraction of iron from haematite are:
(i) \[\ce{Fe2O3 + 3CO -> 2Fe + 3CO2}\]
(ii) \[\ce{FeO + SiO2 -> FeSiO3}\]
(iii) \[\ce{Fe2O3 + 3C -> 2Fe + 3CO}\]
(iv) \[\ce{CaO + SiO2 -> CaSiO3}\]
Advertisements
उत्तर
(i) \[\ce{Fe2O3 + 3CO -> 2Fe + 3CO2}\]
(iv) \[\ce{CaO + SiO2 -> CaSiO3}\]
Explanation:
In blast furnace during extraction of iron, the following two are main reactions.
(i) Reduction of \[\ce{Fe2O3}\] with \[\ce{CO}\]
\[\ce{Fe2O3 + CO -> 2FeO + CO2}\]
\[\ce{2FeO + 2CO -> Fe + 2CO2}\]
\[\ce{Fe2O3 + 3CO -> 2Fe + 3CO2}\]
(ii) Slag formation, \[\ce{CaO + SiO2 -> \underset{Fusible slag}{CaSiO3}}\]
APPEARS IN
संबंधित प्रश्न
What is the role of limestone in the extraction of iron from its oxides?
What is the role of silica in the extraction of copper?
Which form of the iron is the purest form of commercial iron?
Describe the roles of the following: SiO2 in the extraction of copper from copper matte
Why does copper obtained in the extraction from copper pyrites have a blistered appearance?
A current liberates 0.50 g of hydrogen in 2 hours. The weight of copper (at. wt. = 63.5) deposited at the same time by the same current through copper sulphate solution is ______.
Bauxite has the composition
Carbonate ore of iron is ____________.
Which of the following options are correct?
(i) Cast iron is obtained by remelting pig iron with scrap iron and coke using hot air blast.
(ii) In extraction of silver, silver is extracted as cationic complex.
(iii) Nickel is purified by zone refining.
(iv) Zr and Ti are purified by van Arkel method.
When a strip of metallic zinc is placed in an aqueous solution of copper nitrate the blue colour of the solution disappear due to formation of
The important ore of iron is:-
Extraction of zinc from zinc blende is achieved by:-
When compared to ΔG° for the formation of Al2O3 ΔG° for the formation of Cr2O3 is
Which of the following is not an ore of magnesiuim?
Which of the following statements, about the advantage of roasting of sulphide ore before reduction is not true?
Pyrolusite is ______.
