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Considering Ellingham diagram, which of ...

Considering Ellingham diagram, which of the following metals can be used to reduce alumina?

A

Fe

B

Zn

C

Mg

D

Cu

Text Solution

Verified by Experts

The correct Answer is:
C
Cu
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MODERN PUBLICATION-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-COMPETION FILE (Objective Questions) (Multiple Choice Question from competitive examinations)
  1. Match the items of Column I with item of Column II and assign the corr...

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  2. Extraction of gold and silver involves leaching with CN^(-)ion.silver ...

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  3. Considering Ellingham diagram, which of the following metals can be us...

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  4. Which one is malachite from the following

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  5. Identify the reaction that does not take place in a blast furnace

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  6. In the alumino-thermite process, Al acts as :

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  7. In view of the signs of Delta(r)G^(@) for the following reactions : ...

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  8. Which method of purification is represented by the following equation?...

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  9. The function of potassium ethyl xanthate in froth floatation process i...

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  10. The first step in the extraction of copper from copper pyrites

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  11. The statement that is not correct is

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  12. Roasted copper pyrite on smelting with sand produces

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  13. In the correct of the Hall-Heroult process for the extraction of Al, w...

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  14. Which one of the following ores is the best concentrated by froth floa...

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  15. What is the composition of 'Copper matte'?

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  16. The complex formed when Al(2)O(3) is leached from bauxite using concen...

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  17. The metal extracted by leaching with cyanide is

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  18. Purification of aluminium is called

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  19. Electrolytic refining's is ued to purify which of the following metals...

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  20. the common impurities present in bauxite are

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