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Match the items of Column I with items o...

Match the items of Column I with items of Column II

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The correct Answer is:
(i) Bauxite-Aluminium, (ii) Malachite-Copper, (iii) Calamine-Zinc (iv) Magnetite-Iron
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A N EXCEL PUBLICATION-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-QUESTION BANK
  1. Explain the 'froth' floatation process'

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  2. Name two metals which can be refined by van-Arkel Method.

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  3. Match the items of Column I with items of Column II

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  4. Explain the 'froth' floatation process'

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  5. What is the role of limestone (CaCo3) in the extraction of iron?

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  6. Monds process is used for refining of Ni and Van Arkel method is used ...

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  7. Which of the following is the ore of zinc?

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  8. There are servral methods for refining metals. Explain a method for re...

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  9. Metals are extracted from their ores. Among the following which metal ...

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  10. Carbonate ores are usually subjected to calcination, while sulphide or...

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  11. Leaching is a process of concentration of ores. Explain the leaching o...

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  12. Which of the following is not an Ore of Iron? Haematite,Magnetite,Mala...

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  13. Explain froth floatation process for the concentration of Ore.

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  14. During metallurgy, the metal extracted may still contain impurities. D...

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  15. Name two metals that are refined by distillation.

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  16. How would you convert crude germanium into ultrapure germanium? Explai...

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  17. What is the role of limestone (CaCo3) in the extraction of iron?

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  18. Alumina is mixed with cryolite and subjected to electrolysis to extrac...

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  19. What is pig iron?

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  20. What is hydrometallurgy?

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