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Outline the prinicples of refining of me...

Outline the prinicples of refining of metals by the following methods. Zone refining.

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ASSAM ACADEMIC CENTRE-General Principles of Processes of Isolation of Elements-Example
  1. Name the processes from which Chlorine is obtained as a by product.

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  2. What is the role of graphite rod in the electrometallurgy of aluminium...

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  3. Outline the prinicples of refining of metals by the following methods....

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  4. Predict conditions under which Al might be expected to reduce MgO.

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

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  6. Describe how the following changes are brought about Impure copper int...

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  7. Name two metals which occur in nature as oxides.

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  8. Why is froth floatation process selected for the concentration of sulp...

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  9. Outline the prinicples of refining of metals by the following methods....

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

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  11. Why Zinc oxide can be reduced to the metal by heating with Carbon andn...

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  12. Why is the extraction of copper from pyrites more difficult than that ...

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  13. Describe the role of the following in the processes mentioned: NaCN in...

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  14. Which is the most abundant element in the universe?

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  15. Which is the most abundant element in the earth's crust?

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  16. Which is the second most abundant element in the earth crust?

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  17. Name three metals which occur in the native state in nature.

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  18. What is malachite?

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  19. Why do some metals occurs in the native state?

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  20. What is metallurgy?

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