Column - I and Column II contain four entries. Entries of column I- are to be matched with some entries of column-II. Each entry of column-I may have the matching one or more than one entries of Column- II

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Hydrometallurgy applied in commercial extraction of Ag & Au
Carbon reduction applied in commercial extraction of Zn & Sn
Aqueous salt solution is used in electrolytic refining method of Ag, Au, Zn, Sn & Cu
Metal present in anode mud of refining of crude copper are Ag & Au

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Column - I and Column II contain four entries. Entries of column I- are to be matched with some entries of column-II. Each entry of column-I may have the matching one or more than one entries of Column- II

Hydrometallurgy applied in commercial extraction of Ag & AuCarbon reduction applied in commercial extraction of Zn & SnAqueous salt solution is used in electrolytic refining method of Ag, Au, Zn, Sn & CuMetal present in anode mud of refining of crude copper are Ag & Au

Hydrometallurgy applied in commercial extraction of Ag & Au
Carbon reduction applied in commercial extraction of Zn & Sn
Aqueous salt solution is used in electrolytic refining method of Ag, Au, Zn, Sn & Cu
Metal present in anode mud of refining of crude copper are Ag & Au