The question paper consists of 20 Question. 20 Marks and will be of 30 marks. After completing the exam click the FINISH option.
#1. Minerals from which metals are extracted commercially at a comparatively lower cost and with minimum effort.
#2. The earthly impurities like soil, mud, sand, silica found in the minerals.
#6. Converting bauxite to alumina
#7. Converting fused alumina to aluminium by electrolysis
#8. Al2O3 is converted to Al by
#11. Fluorspar is used as
#12. Powdered coke is used to
#14. Composition of electrolyte during Hall-Heroult’s Process
#15. The metal ion which is selectively discharged at the cathode during Hall-Heroult’s Process
#16. Composition of Duralumin is
#17. Which of the following is not an ore of Fe
#18. The cathode reaction taking place during Hall-Heroult’s Process
#19. During Hall-Heroult’s Process the anode has got be replaced from time to time due to
#20. Composition of Magnalium is
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