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Roasting is generally carried out in min...

Roasting is generally carried out in _____mineral.

A

Oxide ores

B

Silicate ores

C

Sulphate ores

D

Carbonate ores.

Text Solution

Verified by Experts

The correct Answer is:
C
Roasting is done for sulphide ores whereas for oxide ores and carbonate ores calcination is done.
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DINESH PUBLICATION-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-REVISION QUESTIONS FROM COMPETITIVE EXAMS.
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  2. The purpose of smelting an ore is

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  3. Roasting is generally carried out in mineral.

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  4. Cupellation process is involved in the metallurgy of

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  5. The slag obtained during the extraction of copper from coper pyrites i...

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  6. The extraction of which of the following metals involves bessemerisati...

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  7. Which one of the following benefication process is used for the minera...

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  8. Which of the following statements is correct regarding the slag obtain...

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  9. Galvanishing of iron sheets is done by

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  10. The natural materials from which an element can be extracted economica...

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  11. Purification of silicon element used in semiconductors is done by

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  12. During smelting an additional substance is added which combines with i...

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  13. When a metal is to be extracted from its ore and if the gangue associa...

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  14. Which metal cannot be obtained by electrolyte sis?

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  15. Which is the strongest reducing agent ?

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  16. The most abundant metal on the surface of the earth is

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  17. The chief source of iodine, in which it is present as sodium iodate, i...

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  18. The process of zone refining is used in the purification of

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  19. A basic lining is given to a furnace by using

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  20. The important oxide ore of iron is

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