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The metal obtained by self reduction pro...

The metal obtained by self reduction process is

A

Cu

B

Hg

C

Pb

D

Al

Text Solution

Verified by Experts

The correct Answer is:
A, B, C
Oxides of unreactive metals like Cu, Pb, Hg are extracted by self reduction.
`{:(2HgO+HgS to 3Hg+SO_(2)),(Cu_(2)S+2Cu_(2)O to 7Cu+SO_(2)), (2PbO+PbS to 3Pb+SO_(2)):}`
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AAKASH SERIES-METALLURGY-LEVEL-II (LECTRURE SHEET) (EXERCISE-I)
  1. Which of the following metals is leached by cyanide process a

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  2. Hydrometallurgy is useful in the extraction of

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  3. The metal obtained by self reduction process is

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  4. The ore concentrated by electromagnetic separation is

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  5. Ellingham diagram does not represents

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  6. Which of the following process makes the one porous?

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  7. The extraction of metals from oxide ores involve

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  8. Metals which can be extracted by smelting process are:

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  9. Roosting is carried out to

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  10. of the following reduction process, correct processes are:

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  11. Roasting of copper pyrites is done

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  12. Highly electropositive metals can not he extracted by carbon reduction...

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  13. Which one of the following metals can be extracted by aluminothermit p...

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  14. For which of the following metal the carbon reduction cannot be used ?

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  15. The advantages of using carbon to reduce a number of oxides and other ...

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  16. The disadvantages of carbon reduction method are:

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  17. The chemical treatment of the ore for concentration is done in the cas...

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  18. What are the froth stabilizers in forth floatation process

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  19. Froth flotation

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  20. The function of adding cryolite in the clectrolytic reduction of alumi...

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