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(a) Give an example of zone refining of ...

(a) Give an example of zone refining of metals.
(b) What is the role of cryolite in the metallurgy of aluminium?

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MODERN PUBLICATION-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-Revision Exercises(Short answer questions)
  1. (a) Differentiate between roasting and calcination. (b)How is cast ...

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  2. (a) Which solution is used for the leaching of silver metal in the pr...

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  3. (a) Give an example of zone refining of metals. (b) What is the role ...

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  4. (a) How can copper be extracted from hydrometallurgical process ?

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  5. Give Mond process for refining of nickel.

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  6. (a) What are calcination and roasting ? In which type of ores are thes...

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  7. Define the following terms: (i) Ore benefaction (ii) Hydrometallur...

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  8. EXTRACTION OF ALUMINIUM

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  9. What type of ores can be concentrated by froth floatation process ? Ex...

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  10. (i) Indicate the principle behind the method used for the refining of ...

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  11. (a) Why is zinc blende roasted before carbon reduction? Answer with ba...

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  12. How is zinc obtained from zinc blende ? Give chemical reactions.

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  13. Explain the steps involved in the vapour phase refining of Ni and Zr.

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  14. (a) Name the role of Na(3)AlF(6) in the electrolytic reduction of alum...

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  15. (i) Name the method of refining of metals such as Germanium. (ii) In...

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  16. All ores are minerals while all minerals are not ores because :

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  17. (a) What are the two requirements for vapour phase refining? Write the...

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  18. Name the principal ore of aluminium. Explain the significance of leach...

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  19. (a) Write the principle of method used for the refining of germanium ...

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  20. Describe the role of (i) NaCN in the extraction of gold from its ore...

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