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When copper ore is mixed with silica in ...

When copper ore is mixed with silica in a reverberatory furnace, copper matte is produced. The copper matte contains__________

A

sulphide of copper (II) and iron (II)

B

sulphide of copper (II) and iron (III)

C

sulphide of copper (I) and iron (II)

D

sulphide of copper (I) and iron (II)

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The correct Answer is:
C
( c) when copper ore is mixed with sillica in a reverberatory furnance copper matte is produced. The copper matte contains sulphide of copper (I) and iron (II)
Copper mate `to Cu_(2)S` and Fes
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NCERT EXEMPLAR-GENERAL PRINCIPLE AND PROCESSES OF ISOLATION OF ELEMENTS -General Principle And Processes Of Isolation Of Elements
  1. In the extraction of chlorine by electrolysis of brine.

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  2. When copper ore is mixed with silica in a reverberatory furnace, coppe...

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  3. Which of the following reaction is an example of autoreduction?

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  4. A number of elements are available in earth's crust but most abundant ...

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  5. Zone refining is based on the principle that

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  6. In the extraction of Cu from its sulphide ore, the metal is formed by ...

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  7. Brine is electrolysed by using inert electrodes. The reaction at anode...

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  8. In the metallurgy of aluminium,

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  9. Elecyroltic refining is used to purify which of the following metals?

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  10. Extraction of gold and silver involves leaching the metal with CN^(-) ...

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  11. Choose the correct option of temperature at which carbon reduced FeO t...

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  12. Below point 'A' FeO can

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  13. For the reduction of FeO at the temperature corresponding to point D, ...

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  14. At the temperature corresponding to which of the points in Fig. FeO wi...

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  15. Which of the following options are correct?

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  16. In the extraction of aluminium by Hall-Heroult process purified Al(2)O...

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  17. Which of the following statements is correct about the role of substan...

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  18. In the Froth Floatation process, zinc sulphide and lead sulphide can b...

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  19. Common impurities present in bauxite are

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  20. Which of the following ores are concentarted by froth floatation?

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