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Zone refining is used for purification o...

Zone refining is used for purification of :

A

Cu

B

Au

C

Ge

D

Ag

Text Solution

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The correct Answer is:
C
Semiconductors are refined by this method.
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ERRORLESS-GENERAL PRINCIPLES & PROCESSES OF ISOLATION OF ELEMENTS-NCERT BASED QUESTIONS (Refining of Crude Metal)
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  2. Zone refining method is used for refining

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  3. Zone refining is used for purification of :

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  5. Gold is extracted by hydrometallurgical procees based on its property

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  6. Zone refining is based on the principle that

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  7. One of the following metals forms a volatile compound and this propert...

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  8. Cupellation process is involved in the metallurgy of

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  9. The temperature of the slag zone in the metallurgy of iron using blast...

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  10. Van Arkel method of purification of metals involves converting the met...

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  11. A metal which is refined by poling is

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  12. Van Arkel method of refining zirconium involves

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  13. In the extraction of chlorine by electrolysis of brine.

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

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  15. Which method of purification is represented by the following equations...

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  16. The function of fluorspar in the electrolytic reduction of alumnia dis...

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  17. In the commercial electrochemical process for aluminium extraction, th...

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  18. The purification of alumina is called

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  19. Purification of aluminium done by electrolytic refining is known as

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  20. In Hall's process, the main reagent is mixed with

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