Which of the Following Is an Example of a Hydrometallurgical

question 36

Multiple Choice

Which of the following is an example of a hydrometallurgical process?

• A)Al(O
• H)₃(s)+ SiO₂(s) AlSiO₃(s)+ 3H₂O(g)
• B)Ni(O
• H)₂(s) NiO(s)+ H₂O(g)
• C)2Al(O
• H)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(O
• H)₄⁻(aq)

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