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Heating pyrites to remove sulphur is cal...

Heating pyrites to remove sulphur is called

A

roasting

B

Calcination

C

Smelting

D

Fluxing

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The correct Answer is:
A
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NIKITA PUBLICATION-GENERAL PRINCIPLES & PROCESSES OF ISOLATION OF ELEMENTS-Multiple choice questions
  1. In the electrolysis of alumina, cryolite is added to

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  2. Aluminium is more reactive than iron. But aluminium is less easily cor...

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  3. Heating pyrites to remove sulphur is called

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  4. The main function of roasting is

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  5. Zone refining is a method to obtain

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  6. Van Arkel method of purification of metals involves converting the met...

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  7. Electrolytic reduction method is used fro the extraction of

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  8. When copper is placed in the atmosphere for sufficient time, a green c...

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  9. Roasting of copper pyrites is done

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

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

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  12. Copper matte consists of:-

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  13. Which method is based on distribution principle?

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  14. Which statement about corrosive sublimate is incorrect ?

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  15. Iron is obtained on large scale from haematite Fe(2)O(3)

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  16. Polling process us used in the purification of

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  17. Spelter is

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  18. Roasting is used during metallurgical operation using

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  19. Pig iron is converted into strrl by decreasing the amount of carbon pr...

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  20. Near the top of the blast furnace, iron oxides are reduced to …… by ca...

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