Consider the Following Half-Reactions

question 3

Multiple Choice

Consider the following half-reactions. Cl₂(g) + 2 e^- → 2 Cl^-(aq)
E° = +1.36 V
Ag⁺(aq) + e^- → Ag(s)
E° = +0.80 V
Cu²⁺(aq) + 2 e^- → Cu(s)
E° = +0.34 V
Sn²⁺(aq) + 2 e^- → Sn(s)
E° = -0.14 V
Al³⁺(aq) + 3 e^- → Al(s)
E° = -1.66 V
Which of the following species will reduce Cu²⁺(aq) ion?

• A) Ag(s)and Sn²⁺(aq)
• B) Cl^-(aq)and Ag(s)
• C) Cl₂(g)and Ag⁺(aq)
• D) Sn(s)and Al(s)
• E) Sn²⁺(aq)and Al³⁺(aq)

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