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During extraction of copper, it is obtai...

During extraction of copper, it is obtained in the form of molten matte. Which of the following is not ture?

A

matte is further treated in Bessemer’s converter.

B

molten matte is electrolysed.

C

It is treated with a blast of air and sand.

D

It is dissolved in `CuSiF_6` and crystallised.

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The correct Answer is:
B, D
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MOTION-METALLURGY-EXERCISE 2 (LEVEL - II)
  1. Roasting can be performed in:

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  2. Which of the following is(are) sulphide ores?

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  3. Which of the following is(are) regarded as iron ores?

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  4. Which of the following employ downward movement or ore due to gravity?

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  5. Calcium silicate slag formed in extraction of iron

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  6. Amphoteric nature of aluminium is employed in which of the following p...

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  7. Noble metal(s) which are commerically extracted by cyanide process is(...

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  8. Carbon reduction method is commercially employed for commercial extrac...

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  9. The main reaction occuring in blast furnace during the extraction of i...

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  10. Which of the following are true for electrolytic extraction of alumini...

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  11. During extraction of copper, it is obtained in the form of molten matt...

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  12. Which of the following ores is(are) concentrated industrially by froth...

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  13. Which of the following is true for calcination of a metal ore ?

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  14. The majore role of flurospar (CaF(2)) which is added in small quantiti...

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  15. The difference (s) between roasting and calcination is / are :

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  16. Leaching is used for the concentration of

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  17. The correct statements are :

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  18. Poling is employed in refining of

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  19. Which of the following reaction is not occur in blast furance during e...

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  20. Match the following choosing one item from column X and the appropriat...

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