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Name the method used for refining of : ...

Name the method used for refining of :
(a). Zirconium.
(b). Nickel.

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(a). Van Arkel method
(b). Mond's process
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CENGAGE CHEMISTRY-APPENDIX INORGANIC VOLUME 2-Short Answer Type
  1. What is a mineral? How does it differ from an ore?

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  2. Why do some metals occur in the native state?

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  3. Name the method used for refining of : (a). Zirconium. (b). Nickel...

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  4. Can iron be purified by amalgamation?

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  5. Both iron and aluminium combine slowly with oxygen at room temperature...

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  6. What is the name given to solid phase of earth?

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  7. Give one example where hydrometallurgy is used for metal extraction?

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  8. Name the method of metal refining which is generally used when a metal...

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  9. When is electrolytic reduction applied for getting a metal?

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  10. What name is given to carbon reduction process for extracting the meta...

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  11. An ore has impurities which are attracted by magnet suggest process fo...

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  12. In moist air, copper corrodes to produce a green layer on the surface....

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  13. The value of triangle(f)G^(ɵ)(Cr2O3)=-540kJmol^-1 and triangle(f)G^(ɵ)...

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  14. What do you understand by roasting in presence of NaCl?

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  15. Why NF3 cannot be hydrolysed, while NCl3 can be readily hydrolysed?

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  16. Why NI5 does not exist While PCl5 exists?

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  17. Why the boiling point of ammonia is greater than phosphine?

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  18. Why NO is paramagnetic?

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  19. Give reason why elemental nitrogen exitsts as diatomic molecule wherea...

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  20. Why nitrogen gas is inert?

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