Given: Zn²⁺(aq)+ 2e^- Zn(s); E° = -0.76 V

question 100

Multiple Choice

Given:
Zn²⁺(aq) + 2e^- Zn(s) ; E° = -0.76 V
Co²⁺(aq) + 2e^- Co(s) ; E° = -0.28 V
Sn²⁺(aq) + 2e^- Sn(s) ; E° = -0.15 V
Pb²⁺(aq) + 2e^- Pb(s) ; E° = -0.13 V
Fe³⁺(aq) + e^- Fe²⁺(aq) ; E° = 0.77 V
Under standard-state conditions,which of the following pairs of elements or ions is capable of reducing Sn²⁺(aq) to Sn(s) ?

• A)Zn(s)or Co(s)
• B)Pb(s)or Fe²⁺(aq)
• C)Co(s)or Pb(s)
• D)Fe²⁺(aq)or Zn(s)
• E)Zn²⁺(aq)or Co²⁺(aq)

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