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प्रश्न
What is the role of Limestone in the extraction of iron from its oxide Fe2O3?
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उत्तर
In the extraction of iron, a basic flux limestone is used. Limestone decomposes to form CaO which reacts with silica gangue present in the iron ore is acidic in nature to form calcium silicate (slag).
\[\ce{CaCO3 -> CaO + CO2}\]
\[\ce{\underset{\text{Flux}}{CaO} + \underset{\text{Gangue}}{SiO2} -> \underset{\text{Slag}}{CaSiO3}}\]
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संबंधित प्रश्न
Out of C and CO, which is a better reducing agent at 673 K?
Why copper matte is put in silica lined converter?
Which one of the following reaction represents calcinations?
Flux is a substance which is used to convert
At the temperature corresponding to which of the points in figure, FeO will be reduced to Fe by coupling the reaction \[\ce{2FeO -> 2Fe + O2}\] with all of the following reactions?
(a) \[\ce{C + O2 -> CO2}\]
(b) \[\ce{2C + O2 -> 2CO}\]
(c) \[\ce{2CO + O2 -> 2CO2}\]
(i) Point A
(ii) Point B
(iii) Point D
(iv) Point E
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