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Why partial roasting of sulphide ore is ...

Why partial roasting of sulphide ore is done in the metallurgy of copper ?

A

Muffle furnace

B

Bessemer converter

C

Blast fumace

D

Reverberatory furnace

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The correct Answer is:
D
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AAKASH INSTITUTE ENGLISH-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-Assignment (Section-A) Objective type Question
  1. Which of the following is used as reducing agent in Goldschmidt method...

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  2. Which of the following is used to reduce TiCl4 to Ti?

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  3. In Ellingham diagrams plots of Delta(f)G (oxide formation) show positi...

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  4. Which of the following statement is correct w.r.t. the following graph...

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  5. In Elingham diagrams of DeltaG de formation Vs T, which of the followi...

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  6. Which form of iron is extracted from blast furnance :

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  7. Which of the following has lowest percentage of carbon?

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  8. Why partial roasting of sulphide ore is done in the metallurgy of copp...

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  9. Zinc is extracted from zinc blende by

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  10. Which of the following metal is leached by Cyanide process

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  11. Hall-Heroult method is used during extraction of :-

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  12. Poling is used for the purification of:

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  13. Impure zinc, as collected from earthen clay retort, is called

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  14. The process of converting hydrated alumina into anhydrous alumina is c...

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  15. Write chemical reactions taking place in the extraction of zinc from z...

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  16. Which of the following metal is purified by distilation process?

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  17. Vapour phase refining can be carried out in case of

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  18. Which of the following gives metal by electrolytic reduction convenien...

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  19. Which of the following organometallics is used in the purification of ...

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  20. Which of the following metals is obtained by the self reduction proces...

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