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Outline of refining of metals by the fol...

Outline of refining of metals by the following methods.
Van Arkel method.

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R G PUBLICATION-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-EXERCISE
  1. Describe the underlying principle of each of the following metal refin...

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  2. Outline of refining of metals by the following methods. Vapour phase ...

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  3. Outline of refining of metals by the following methods. Van Arkel met...

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  4. What is Hall-Heroult process? How many Al can be obtained by burning a...

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  5. What criterion is followed for the selection of the stationary phase i...

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  6. Zinc and not Copper is used for the recovery of silver from the comple...

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  7. The extraction of Au by leaching with NaCN involves both oxidation and...

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  8. What is the role of iodine in the refining of titanium?

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  9. Describe how the following change are brought about pig iron into stee...

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  10. Whose metal dust is used as a reducing agent in dye industry?

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  11. Describe the role of the following in the processes mentioned: Limesto...

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  12. Explain the role of the following in the processes mentioned: Depressa...

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  13. Why is the reduction of a metal oxide easier if the metal formed is in...

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  14. Which solution is used for the leaching of silver metal in the presenc...

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  15. Out of C and CO, which is better reducing agent at the lower temperatu...

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  16. Describe the role of SiO2 in the extraction of Copper from Copper matt...

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  17. Which method is used for obtaining high purity metals for semi conduct...

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  18. Draw the Schematic diagram of column chromatograph for industrial use.

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  19. What chemical principle is involved in choosing a reducing agent for g...

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  20. Give reasons for the following. Alumina is dissolved in cryolite for e...

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