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The method of zone refining of metals is...

The method of zone refining of metals is based on the principle of

A

Greater mobility of the pure metal than that of impurity

B

Higher melting point of the impurity than that of the pure metal

C

Greater noble character of the solid metal than that of the impurity

D

Greater solubility of the impurity in the molten state than in the solid

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The correct Answer is:
D
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VK JAISWAL ENGLISH-METALLURGY-Level 2
  1. There are following extraction process of silver but not:

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  2. In the extraction of aluminium Process X : applied for red bauxite t...

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  3. Give the correct order of initials T or F for following statements. Us...

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  4. FeCr(2)O(4) (chromite ) is converted to Cr by following steps : Crho...

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  5. The electrolysis of pure alumina is not feasible because :

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  6. Which of the following reaction does not occur in Bessemer's converter...

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  7. what products are formed during the electrolysis of concentrated aqueo...

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  8. During the electrolysis of carnallite, MgCl(2) is decomposed and not K...

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  9. Aluminium oxide is not reduced by chemical reactions due to

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  10. Incorrect statement in electrolysis of Al(2)O(3) by Hall-Heroult proce...

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  11. In the leaching of Ag(2)S with NaCN, a stream of air is also passed. I...

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  12. In van Arkel method, if I(2) is introduced at 1700 K over impure metal...

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  13. The method of zone refining of metals is based on the principle of

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  14. Blister copper is refined by stirring molten impure metal with green l...

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  15. The anode mud in the electrolytic refining of silver contains :

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  16. The method of electrolytic refining is not suitable in the extraction ...

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  17. Match Column-I with Column-II

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  18. Softening of lead means :

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  19. In the purification of impure Ni by Mond's process, metal is purified ...

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  20. Correct match is :

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