The respective standard oxidation potentials for Cu . Cu2+, Ni . Ni2+, and Ag . Ag+ are (in V) -0.34, +0.28 and -0.80. Impure copper slabs at the anode are refined electrochemically, affording much purer metallic copper atthe cathode. Which statement below is true?

Question

Accepted Answer

Ni is oxidized preferentially over Cu, and Ni2+ is reduced much less readily than Cu2+, so Ni is separated as Ni2+ in the electrolyte solution.

Answer

Cu is oxidized preferentially over both Ni and Ag, so both Ni and Ag metals are separated as sludges below the anode.

Answer

Ag is oxidized preferentially over Cu, and Ag+ is reduced much less readily than Cu2+, so Ag is separated as Ag+ in the electrolyte solution.

Answer

Ag is oxidized preferentially over Cu, and Ag+ is reduced much more readily than Cu2+, so Ag plates out with Cu at the cathode and cannot readily be removed from impure copper.

Answer

Both Ni and Ag are oxidized preferentially over Cu and Ni2+, and Ag+ is reduced much less readily than Cu2+, so Ni and Ag are separated as Ni2+ and Ag+ in the electrolyte solution.

The respective standard oxidation potentials for Cu . Cu2+, Ni . Ni2+, and Ag . Ag+ are (in V) -0.34, +0.28 and -0.80. Impure copper slabs at the anode are refined electrochemically, affording much purer metallic copper atthe cathode. Which statement below is true?

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The respective standard oxidation potentials for Cu . Cu2+, Ni . Ni2+, and Ag . Ag+ are (in V) -0.34, +0.28 and -0.80. Impure copper slabs at the anode are refined electrochemically, affording much purer metallic copper atthe cathode. Which statement below is true?

❤ If you liked Fatskills, consider supporting us by checking out The Life Manuals You Never Got.

About | Explore | User Guide | Topics | Subjects | Doubt Solver | Career Aptitude Test | Answers | Free Tools | What Should We Know? Privacy | Terms |

Without work one finishes nothing. - Ralph Waldo Emerson© 2026 Fatskills.com

All trademarks, logos and brand names are the property of their respective owners. All company, product and service names used in this website are for identification purposes only. Use of these names, trademarks and brands does not imply endorsement.

About | Explore | User Guide | Topics | Subjects | Doubt Solver | Career Aptitude Test | Answers | Free Tools | What Should We Know?
Privacy | Terms |

Without work one finishes nothing. - Ralph Waldo Emerson
© 2026 Fatskills.com