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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Definitions:

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Visual signals conveyed through facial expressions that communicate emotions, intentions, or social information.

Paul Ekman

An American psychologist known for his work on the facial expressions of emotions and their correlation with human feelings.

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Feelings of pity and sorrow for someone else's misfortune.

Behavioural Expression

The outward display or manifestation of an individual's behavior, including verbal and non-verbal communications, gestures, and actions.