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Name two metals which occur in nature as...

Name two metals which occur in nature as oxides.

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ASSAM ACADEMIC CENTRE-General Principles of Processes of Isolation of Elements-Example
  1. Describe how the following change are brought about pig iron into stee...

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

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

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

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

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

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

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

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

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

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

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

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

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  14. What is malachite?

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

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  16. What is metallurgy?

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  17. What are minerals?

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  18. What is an ore?

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  19. What is gangue (or matrix)?

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  20. What is flux? What is the role of flux in the metallurgy of iron and c...

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