Which of the following is an example of an electrometallurgy process?
A) Al(OH) 3(s) + SiO2(s) AlSiO3(s) + 3 H2O(g)
B) Zn(OH) 2(s) ZnO(s) + H2O(g)
C) 2 Al(OH) 3(s) Al2O3(s) + 3 H2O(g)
D) PbSO4∙5H2O(s) + H2O(l) → PbS(s) + H2SO4(aq) + 5 OH⁻(aq)
E) Al2O3∙nH2O(s) + 2 OH⁻(aq) + 2 H2O(l) → 2 Al(OH) 4⁻(aq)
Correct Answer:
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