Which One of the Following Reactions Must Be Carried Out $\rarr$

question 71

Multiple Choice

Which one of the following reactions must be carried out in an electrolytic cell rather than in a galvanic cell

• A)Zn²⁺(aq) + Ca(s) \(\rarr\) Zn(s) + Ca²⁺(aq)
• B)Al³⁺(aq) + 3Br^-(aq) \(\rarr\) Al(s) + (3/2)Br₂(l)
• C)2Al(s) + 3Fe²⁺(aq) \(\rarr\) 2Al³⁺(aq) + 3Fe(s)
• D)H₂(g) + I₂(s) \(\rarr\) 2H⁺(aq) + 2I^-(aq)
• E)Fe²⁺(aq) + Mg(s) \(\rarr\) Fe(s) + Mg²⁺(aq)

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