Consider the following processes: Zn²⁺ + 2e⁻ → Zn(s); E⁰ = -0.76 V Ca²⁺ + 2e⁻ → Ca(s); E⁰ = -2.87 V Mg²⁺ + 2e⁻ → Mg(s); E⁰ = -2.36 V Ni²⁺ + 2e⁻ → Ni(s); E⁰ = -0.25 V The reducing power of the metals increases in the order:

Consider the following processes:
Zn²⁺ + 2e⁻ → Zn(s); E⁰ = -0.76 V
Ca²⁺ + 2e⁻ → Ca(s); E⁰ = -2.87 V
Mg²⁺ + 2e⁻ → Mg(s); E⁰ = -2.36 V
Ni²⁺ + 2e⁻ → Ni(s); E⁰ = -0.25 V
The reducing power of the metals increases in the order: