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प्रश्न
Match items in Column – I with the items of Column – II and assign the correct code.
| Column – I | Column – II |
| A. Cyanide process | (i) Ultrapure Ge |
| B. Froth floatation process | (ii) Dressing of ZnS |
| C. Electrolytic reduction | (iii) Extraction of Al |
| D. Zone refining | (iv) Extraction of Au |
| (v) Purification of Ni |
पर्याय
A - (i), B - (ii), C - (iii), C - (iv)
A - (iii), B - (iv), C - (v), C - (i)
A - (iv), B - (ii), C - (iii), C - (i)
A - (ii), B - (iii), C - (i), C - (v)
MCQ
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उत्तर
A - (iv), B - (ii), C - (iii), C - (i)
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