24. Based on the following half-reactions under standard conditions, which metal, Cu or Ni, could reduce Zn²⁺ to Zn(s) upon Cu or Ni mixed with a Zn²⁺(aq) solution at ambient temperature?
Zn²⁺ + 2e⁻ → Zn, ε° = -0.76 V
Cu²⁺ + 2e⁻ → Cu, ε° = 0.34 V
Ni²⁺ + 2e⁻ → Ni, ε° = -0.23 V
(A) Both Ni and Cu would work.
(B) Neither Ni nor Cu would work.
(C) Ni
(D) Cu
(E) This cannot be determined.

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統計： A(0), B(0), C(1), D(0), E(0) #3853539