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Elecyroltic refining is used to purify w...

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

A

Cu and Zn

B

Ge and Si

C

Zr and Ti

D

Zn and Hg

Text Solution

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The correct Answer is:
A
Copper and zinc are two metals which are generally purified by using electrolyte refining. In this process, impure metal is used as anode and pure metal is used as a cathode. Impurities from the blister copper or impure zinc deposit as anode mud
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ERRORLESS-GENERAL PRINCIPLES & PROCESSES OF ISOLATION OF ELEMENTS-NCERT BASED QUESTIONS (Reduction of Free Metal)
  1. Which of the following reaction is an example of autoreduction?

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

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

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  4. When copper pyrites is roasted in excess of air, a mixture of CuO + Fe...

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  5. Matte contains mainly

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  6. The metallurgical process in which a metal is obtained in a fused stat...

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  7. The slag obtained during the extraction of copper from coper pyrites i...

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  8. Flux is used to remove

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  9. In blast furnace, iron oxide is reduced by

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  10. In the alumino thermite process aluminium acts as

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  11. Which metal can't be obtained from electrolysis

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  12. To obtain chromium from chromic oxide (Cr(3)O(3)) the method used is

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  13. Bauxite ore is made up of Al(2)O3 + SiO2 + TiO2 + Fe(2)O3 . This ore ...

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  14. Roasted copper pyrite on smelting with sand produces

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  15. Name the metal that is purified by placing the impure metal on sloping...

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  16. Cryolite is

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  17. Mark the wrong statement

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

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  19. In the metallurgy of aluminium,

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  20. Copper is extracted from copper pyrites by heating in a besseme...

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