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Which method of purification is represen...

Which method of purification is represented by following equations ?
`Zr + 2I_(2) overset(875K) to ZrI_(4)` ?
`ZrI_(4) underset("Tungsten filament")overset(2075K)to Zr + 2I_(2)`

A

zone refining

B

Van Arkel

C

polling

D

Liquation

Text Solution

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The correct Answer is:
B
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TARGET PUBLICATION-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-Critical Thinking
  1. Gallium arsenide is purified by .

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  2. Which of the following impurities are removed in van Arkel method ?

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  3. Which method of purification is represented by following equations ? ...

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  4. During roasting of concentrated zinc sulphide ore, which of the follow...

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  5. Roasting of concentrated zinc sulphide ore is completed at the tempera...

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  6. Which of the following is INCORRECT regarding modern vertical retort p...

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  7. Iron exhibits property of ferromagnetism.

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  8. In metallurgy if iron, charge introduced in the blast furnace consists...

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  9. In the cup and cone arrangement of blast furnace, the cone enables .

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  10. In the metallurgy of iron, when limestone is added to the blast furnac...

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  11. The smelting of iron in the blast furnace involves all the following p...

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  12. Which of the following reactions does NOT occur in blast furnace ?

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  13. Which of the following is NOT a mineral of aluminium ?

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  14. Baeyer's process is used for the purification of bauxite containing as...

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  15. The chief impurity present in bauxite is

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  16. Which of the following reaction is involved in the Hall's method of pu...

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  17. Alumina is .

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  18. Aluminium is produced on a large scale by electrolysis of alumina, dis...

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  19. In hall and Heroult's process , the molten electrolyte is covered with...

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  20. Aluminothermic process is used for the extraction of metals, whose oxi...

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