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The chemical treatment of the ore for co...

The chemical treatment of the ore for concentration is done in the case of

A

aluminium

B

Silver

C

copper

D

gold

Text Solution

Verified by Experts

The correct Answer is:
A, B, D
Chemical treatment is done in the extraction of metals like Al, Ag, Au, etc .
Al ore bauxite is leached with NaOH.
Au, Ag leached with NaCN.
For .Cu ore `(CuFeS_(2))` concentration done by froth flotation. It is a physical method
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AAKASH SERIES-METALLURGY-LEVEL-II (LECTRURE SHEET) (EXERCISE-I)
  1. The advantages of using carbon to reduce a number of oxides and other ...

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  2. The disadvantages of carbon reduction method are:

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

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  4. What are the froth stabilizers in forth floatation process

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  5. Froth flotation

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

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  7. Electrolysis method is used for the extraction of

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  8. Which of the following equation reprsents smelting process

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  9. In the extraction of which of the following metals is used for amalgam...

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  10. The flux that can be used for the removal of hasic impurities like Cou...

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  11. Chemical reduction is used in the extraction of

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  12. Bessemerisation is used in the metallurgy of

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  13. Electro-metallurgical process (electrolysis of fused electrolyte) is e...

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  14. Electrolytic reduction is used in the extraction of

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  15. Carbon is used as a common reducing agent in the extraction of

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  16. The smelting of iron in a blast furnace involves the following process...

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  17. Which of the following reaction in the blast furnaces are endothermic ...

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  18. Silver is extracted by

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  19. In the electrolysis of alumina cryolite is added to:

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  20. Which of the following metals) can be obtained by electrolysis of thei...

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