Under Standard-State Conditions, Which of the Following Half-Reactions Occurs at the Cathode

question 50

Multiple Choice

Under standard-state conditions, which of the following half-reactions occurs at the cathode during the electrolysis of aqueous nickel sulfate at 25 ^$\circ$ C

• A)2H₂O \(\rarr\)O₂ + 4H⁺ + 4e^-
• B)Ni²⁺ + 2e^- \(\rarr\) Ni
• C)2H₂O + 2e^- \(\rarr\) H₂ + 2OH^-
• D)Ni \(\rarr\) Ni²⁺ + 2e^-

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