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Give Mond process for refining of nickel...

Give Mond process for refining of nickel.

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Describe the principle involved in each of the following processes: (a) Mond process for refining of nickel. (b) Column chromatography for purification of rare elements.

In Mond's process for refining of nickel, the following reactions occur. The value of 'x' is --------. Ni+xCOoverset("330 K - 350 K")rarr No(CO)_(x)overset("450 K - 407 K")rarr Ni_((s))+xCO_((g))

(a) What are the two requirements for vapour phase refining? Write the chemical reactions which occur during Mond's process for the refining of nickel.

The volatile complex formed in Mond process during refining of nickel is _________.

Complexes formed in the following methods are: (I) Mond's process for purification of nickel (II) Removal of ureacted AgBr from photographic plate (III) Removal of lead poisoning from the body

Complex formed in the following methods are (I) Mond's process for purification of nickel (II) Removal of lead poisoning from the body (III) Cyanide process for extraction of silver (IV) Froth flotation process for separation of ZnS from galena ore by using depresent.

MODERN PUBLICATION-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-Revision Exercises(Short answer questions)
  1. (a) Give an example of zone refining of metals. (b) What is the role ...

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

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  3. Give Mond process for refining of nickel.

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

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

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  6. EXTRACTION OF ALUMINIUM

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

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

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

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

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

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

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

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

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

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

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

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

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  19. Outline the principles of refining of metals by the following methods....

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  20. (i) Name a metal refined by Van Arkel method. (ii) Explain the proce...

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