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Name the method used for the refining of...

Name the method used for the refining of Nickel.

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ASSAM ACADEMIC CENTRE-General Principles of Processes of Isolation of Elements-Example
  1. What is meant by the term 'chromatography'?

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

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  3. Name the method used for the refining of Nickel.

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  4. Giving examples, differentiate between 'roasting' and 'calcination'.

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  5. How is 'cast iron' different from pig iron?

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  6. Differentiate between 'minerals' and 'ores'.

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  7. Why Copper matte is put in Silica lined converter?

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  8. Explain the role of the following in the processes mentioned: Cryolite...

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  9. How is leaching carried out in case of low grade copper ores?

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  10. Why Zinc not extracted from Zinc oxide through reduction using CO?

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  11. Out of C and CO, which is a better reducing agent at 673 K?

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  12. Name the processes from which Chlorine is obtained as a by product.

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

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

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

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

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

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

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

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

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