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Which of the following statement is inco...

Which of the following statement is incorrect about the extractive metallurgy of coper?

A

Matte chiefly consists of iron sulphide and some ferrous oxide.

B

The impurity of iron sulphides is removed as fusible ferrous slag, `FeSiO_(3)` during roasting.

C

The copper pyrite is concentrated by froth floatation process.

D

Copper is obtained by self-reduction in Bessemer converter.

Text Solution

Verified by Experts

The correct Answer is:
A
In actual process the ore is heated in a reverberatory furnace after mixing with silica. In the furnace, iron oxide slags off as tron silicate and copper is produced in the from of copper matter which contains mostly `Cu_(2)S` and some `FeS`.
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A2Z-GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF METALS-Metallurgy Of Cu, Fe, Ag, Al, Zn, And Au
  1. Copper pyrites are concentrated by

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  2. An ore like zinc blends is concentrated by

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  3. Which of the following statement is incorrect about the extractive met...

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

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  5. In smelting the furnace most suitable is

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  6. Flux added in the extraction of iron is

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  7. Copper and tin are refined by:

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  8. In the manufacture of iron from haematile, the limestone acts as a

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  9. Blister copper is:

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

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  11. Tin and zinc can be refined by:

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  12. Complex is formed in the extraction of

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  13. Ag(2)S +NaCN rarr (a) (a) +Zn rarr (d) (b) is a metal. Hence (a) a...

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  14. Which of the following metal is extracted by amalgamation process?

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  15. Leaching of Ag(2)S is carried out by heating it with a dilute solution...

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  16. The reaction 2ZnS +3O(2) rarr2ZnO +2SO(2) in the metallurgical process...

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  17. In Mac Arthur Forest method, silver is extracted from the solution of ...

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  18. In blast furnace, the highest temperature is in

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  19. In which of the following pair of metals, both are commerically extrac...

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  20. During extraction of Fe, slag obtained is

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