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The process of calcination is generally ...

The process of calcination is generally carried out in case of __________.

A

sulphide ores only

B

carbonate ores and sulphide ores

C

hydrated oxides and carbonate ores

D

hydrated oxides and sulphide ores

Text Solution

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The correct Answer is:
C
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TARGET PUBLICATION-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-Critical Thinking
  1. The role of calcination in metallurgical operation is

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  2. Which one of the following reactions is an example for calcination pro...

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  3. The process of calcination is generally carried out in case of .

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  4. Which of the following reactions involves the smelting process ?

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  5. In metallurgy , flux is a substance used to convert.

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  6. Which of the following is NOT an alkaline flux ?

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  7. Specific gravity of slag is

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  8. For the formation of carbon dioxide , Delta G^(@).

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  9. For the temperature at which C to CO line lie below the metal oxide li...

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  10. A newly discovered metal 'M' was found to have it graph of formation o...

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  11. Which of the following statements is INCORRECT on the basis of Ellingh...

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  12. Liquation process for refining of crude metal is used when .

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  13. During the process of polling , .

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  14. The fact that impurities are more soluble in the molten state than in ...

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  15. Inert atmosphere of argon is used during ozone refining to prevent.

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  16. Gallium arsenide is purified by .

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

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

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

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

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