Column 1 | Column 11 |
A. Cyanide process | 1. Ultrapure Ge |
B. Froth floatation process | 2. Dressing of ZnS |
C. Electrolytic reduction | 3. Extraction of Al |
D. Zone refining | 4. Extraction of Au |
5. Purification of Ni |
Answer:
;
A.®(4) B.®(2)
C.®(3) D.®(1)
A. Cyanide process
is used for extraction of Au through formation of anionic complex.
B. -Froth
floatation process is used for dressing of ZnS.
C.
Electrolytic reduction method is used for extraction of aluminium. Graphite
electrode is used for this purpose.
D. Zone-refining is
used for purification of Ge.
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