Four metals and their methods of refinem...

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

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

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

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

Ni : Electrolysis ,Cu : Zone refining , Zr : van-arkel process , Ga : Monds process

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