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EXTRACTION OF ALUMINIUM...

EXTRACTION OF ALUMINIUM

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Extraction OF Copper||Roasting||Melting||Bessemerisation|| Extraction OF Aluminium||Ores OF Aluminium||Steps Involved in Extraction|| Purification||Bayer’s Process|| Hall’s Process||Serpeck's Process||Hall Heroult Process||Hoope’s Process

What is the role of CO_(2) in the extractive metallurgy of aluminium from its ore ?

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The cathode used in the electrolytic cell of aluminium extraction is made of

MODERN PUBLICATION-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-Revision Exercises(Short answer questions)
  1. (a) What are calcination and roasting ? In which type of ores are thes...

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  2. Define the following terms: (i) Ore benefaction (ii) Hydrometallur...

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  3. EXTRACTION OF ALUMINIUM

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  4. What type of ores can be concentrated by froth floatation process ? Ex...

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  5. (i) Indicate the principle behind the method used for the refining of ...

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  6. (a) Why is zinc blende roasted before carbon reduction? Answer with ba...

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  7. How is zinc obtained from zinc blende ? Give chemical reactions.

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  8. Explain the steps involved in the vapour phase refining of Ni and Zr.

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  9. (a) Name the role of Na(3)AlF(6) in the electrolytic reduction of alum...

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  10. (i) Name the method of refining of metals such as Germanium. (ii) In...

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  11. All ores are minerals while all minerals are not ores because :

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  12. (a) What are the two requirements for vapour phase refining? Write the...

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  13. Name the principal ore of aluminium. Explain the significance of leach...

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  14. (a) Write the principle of method used for the refining of germanium ...

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  15. Describe the role of (i) NaCN in the extraction of gold from its ore...

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  16. Outline the principles of refining of metals by the following methods....

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  17. (i) Name a metal refined by Van Arkel method. (ii) Explain the proce...

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  18. (i) Explain zone refining method for refining of metals. (ii) Explai...

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  19. (i) Write composition of copper matte. (ii) Write balanced equations...

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  20. (a) Name the method of refining which is (i) used to obtain semicond...

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