Question

Four metals and their methods of refinement are given.
(i) Ni, Cu, Zr, Ga
(ii) Electrolysis, van Arkel process, zone refining, Mond's process.
Choose the right method for each.

• A. Ni: Electrolysis, Cu: Van Arkel process, Zr: Zone refining, Ga: Mond's process
• B. Ni: Mond's process, Cu: Electrolysis, Zr: van Arkel process, Ga: Zone refining
• C. Ni: Mond's process, Cu: van Arkel process, Zr: Zone refining, Ga: Electrolysis
• D. Ni: Electrolysis, Cu: Zone refining, Zr: van Arkel process, Ga: Mond's process

Answer 1

Answer: (B)

Ni: Mond's process, Cu: Electrolysis, Zr: van Arkel process, Ga: Zone refining

Nickel is purified by Mond's process. Copper is refined by using electrolytic reduction. Zirconium by Van-Arkel process, semi conductors like $Ge,Si$ etc., are refined by Zone refining.