Which of the following is an example of a hydrometallurgical process?
A) Al(OH) 3(s) + SiO2(s)
AlSiO3(s) + 3H2O(g)
B) Ni(OH) 2(s)
NiO(s) + H2O(g)
C) 2Al(OH) 3(s)
Al2O3(s) + 3H2O(g)
D) CuSO4∙5H2O(s) + H2O(l)
CuS(s) + H2SO4(aq) + 5OH⁻(aq)
E) Al2O3∙nH2O(s) + 2OH⁻(aq) + 2H2O(l)
2Al(OH) 4⁻(aq)
Correct Answer:
Verified
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