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Select the stepe requried for the extraction of aluminium and sequence them. (1) froth flotation (2) chemical separation (3) electrolytic reduction (4) smelting (5) distillation under low pressure (6) electrolytic refining (7) Pulverisation (8) conversion of concentrated ore into oxide (9) crushing and grindingA. 9 5 7 2 3 8 6 1B. 3 2 1 4 5 6 7 8C. 9 7 2 8 3 6D. 9 7 2 3 8 6 |
Answer» (i) Crushing and grinding (ii) Pulverisation (iii) Chemical separation (iv) Conversion of concentrated ore into oxide (v) Electrolytic reduction (vi) Electrolytic refining |
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