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Why is the extraction of copper form pyr...

Why is the extraction of copper form pyries more difficult then that from its oxide ore through reduction?

A

Iron sulphide (FeS)

B

Carbon monoxide (CO)

C

Copper (I) sulphide `(Cu_(2)S)`

D

Sulphur dioxide `(SO_(2))`

Text Solution

Verified by Experts

The correct Answer is:
C
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SURA PUBLICATION-MATALLURGY-Additional Questions and Answers
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  3. Name the process that is employed to refine aluminium.

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  6. Which among the following reaction represents the formation of slag ?

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  8. Which of the following mineral contains calcium as well as magnesium ?

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  9. In the froth-floatation process the collectors such as pine oil and xa...

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  10. Concentration of copper pyrites is done by -

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  12. What is the action of water on (a) sodium (b) magnesium, and (c) alumi...

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  13. The blistered appearance of Cu obtained from the reverberatory furnace...

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  14. Identify the halide ore among the following.

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  15. Identify the metal that occurs in free state.

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  16. 2PbS + 3O(2) rarr 2PbO + 2SO(2) Name the process.

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  17. The process of heating of copper pyrites to remove sulphur is called

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  18. Delta G^(@) vs T plot in the Ellingham's diagram slopes downward the r...

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  19. Pick out the alloy that contains a non-metal as constituent in it

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  20. Ignition mixture used in aluminothermic process is ………….

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