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Which of the following statement is corr...

Which of the following statement is correct?

A

Roasting is unneccessarily done for Fe extraction because there is no sulphide ore.

B

In the smelting step to Cu extraction, reduction of the ore takes place.

C

Ores may not be mineral.

D

Sphalerite is the ore of zinc.

Text Solution

Verified by Experts

The correct Answer is:
D
Sphalerite is the ore of zinc.
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DISHA PUBLICATION-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-EXERCISE -1: CONCEPT BUILDER (TOPICWISE)
  1. Which of the following processes involve the roasting process ?

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  2. In the froth flotation process for benefication of ore, the ore partic...

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  3. Which of the following statement is correct?

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  4. Froth floatation process is based on .

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  5. Before introducing FeO in blast furance, it is converted to Fe(2)O(3) ...

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  6. Electrolytic reduction method is used fro the extraction of

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  7. Calcination is used in matallurgy for removal of

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  8. Heating of pyrites in air for oxidation of sulphur is called

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  9. Which one of the furnaces among the following can produce the highest ...

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  10. Furances are lined with calcium oxide as

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  11. Roasting is generally done in case of the

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  12. Aluminothermic process is used for the extraction of metals, whose oxi...

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  13. Frothers (used in Froth floatation process) are

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  14. Identify x,y,z for the following metallurgical process : metal sulph...

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

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  16. Furances are lined with calcium oxide as

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  17. The substance used in the thermite process of reducing metal ores is

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  18. After partial roasting, the sulphide of copper is reduced by

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  19. Before introducing FeO in blast furance, it is converted to Fe(2)O(3) ...

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  20. ELLINGHAM DIAGRAM

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