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Outline the principples behind the refin...

Outline the principples behind the refining of metals by the following methods :
(i) Zone refining method
(ii)Chormatographaphic method

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CENGAGE CHEMISTRY ENGLISH-APPENDIX INORGANIC VOLUME 2-Exercises
  1. What is the role of depressant in froth floatation process?

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

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  3. Outline the principples behind the refining of metals by the following...

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

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  5. Name the common elements present in the anode mud in electrolytic refi...

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  6. Write down the reactions taking place in different zones in the blast ...

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  7. Write chemical reactions taking place in the extraction of zinc from z...

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  8. What is the function of SiO(2) in the metallurgy of copper?

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  9. Answer the Following: (i) What si the role of cryolite in the metall...

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

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  11. Describe a method for refining nickel.

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  12. How can you separate alumina from silica in a bauxite ore associated w...

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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. What is the role of cryolite in the metallurgy of aluminium?

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  18. What is the process of leaching in case of low grade copper ores ?

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

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  20. The value ofDelta (f) G^(Ө) for formation of Cr(2) O(3) is – 540 kJmo...

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