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Which of the following impurities are re...

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

A

Carbon monoxide

B

Silica

C

Oxygen and nitrogen

D

Hydrogen

Text Solution

Verified by Experts

The correct Answer is:
C
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TARGET PUBLICATION-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-Critical Thinking
  1. Inert atmosphere of argon is used during ozone refining to prevent.

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  2. Gallium arsenide is purified by .

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

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

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

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

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

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  8. Iron exhibits property of ferromagnetism.

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

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

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

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

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

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

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

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  16. The chief impurity present in bauxite is

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

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  18. Alumina is .

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

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

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