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Extraction of iron from its oxides, Extraction of copper from cuprous oxide [copper(I) oxide],Extraction of zinc from zinc oxide
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.
Write down the reactions taking place in different zones in the blast furnace during the extraction of iron.
Is it true that under certain conditions, Mg can reduce SiO2 and Si can reduce MgO? What are those conditions?
The reaction, `Cr_2O_3 + 2Al -> Al_2O_3 + 2Cr (triangleG^theta = -421 kJ)` is thermodynamically feasible as is apparent from the Gibbs energy value. Why does it not take place at room temperature?