Predict conditions under which Al might be expected to reduceMgO.
Outline the principles of refining of metals by the following methods: (i) Zone refining (ii) Electrolytic refining (iii) Vapour phase refining
What is the role of graphite rod in the electrometallurgy of aluminium?
Name the processes from which chlorine is obtained as a by-product what will happen if an aqueous solution of NaCl Is subjected to electrolysis?
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.
Out of C and Co, which is a better reducing agent for ZnO?
The value of f Δr G° for formation of Cr2 O3 is – 1 540kJ mol -1 and that of Al2 O3 is – 827 kJ mol -1 . Is the reduction of Cr2 O3 possible with Al?
Why is zinc not extracted from zinc oxide through reduction using CO?
How is leaching carried out in case of low grade copper ores?
What is the role of cryolite in the metallurgy of aluminium?
Why copper matte is put in silica lined converter?