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

question 10

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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Definitions:

Random Sampling

A method in statistics where a subset of individuals is chosen from a larger set or population in a way that each individual has an equal chance of being selected.

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