Extraction of iron from its oxides, Extraction of copper from cuprous oxide [copper(I) oxide],Extraction of zinc from zinc oxide
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.
Why is the extraction of copper from pyrites more difficult than that from its oxide ore through reduction?
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?