Which of the following is/are correctly matcbed? – InterviewSolution

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1.	Which of the following is/are correctly matcbed?
Answer» Cyanide PROCESS - extraction of Au Froth FLOATING process - `CuSO_(4)` Electrolytic REDUCTION - extraction of Cu Zone refining - ultrapure Ge Solution :Au extracted by eynide process. Cu - extracted by SELF reduction. Not by electrolytic reduction Zone refining is used for the PRODUCTION of ultra pure semiconductors like Ge. `CuSO_(4)` is used as activator in froth floatation process.

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