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

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

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

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  4. Explain Column chromatography.

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

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  6. Name the common elements present in the anode mud in electrolyte refin...

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  7. Write down the reaction taking place in different zones in the blast f...

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  8. Write the chemical reactions which take place in the following operati...

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  9. Explain the role of the following in the processes mentioned: Silica i...

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  10. What is meant by the term 'chromatography'?

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

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

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

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

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  15. Differentiate between 'minerals' and 'ores'.

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

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

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

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

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

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