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Zone refining is a method to obtain...

Zone refining is a method to obtain

A

very high temperature

B

ultra pure Al

C

ultra pure metals

D

ultra pure oxides

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Verified by Experts

The correct Answer is:
C
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Zone refining is used to obtain metals in high degree of purity. During electrorefining pure metal is liberated at the cathode.

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NARAYNA-METTALURGY-Refining
  1. Which of the following metal is refined by distaillation method

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  2. Zone refining method is used for refining

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  3. Zone refining is a method to obtain

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  4. A metal contains, metal oxide as impurity. The method used to refine t...

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  5. Metal refined by cupellation process is

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  6. Which of the following pari of metals is purified by VanArkel method

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  7. 100% copper is obtained from crude copper by

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  8. If the impurity in a metal has a greater affinity for oxygen and is mo...

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  9. Which of the following has maximum thermodynamic spontaneously at 400^...

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

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  11. Which of the following metal is refined by distaillation method

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  12. Zone refining method is used for refining

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  13. Zone refining is a method to obtain

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  14. A metal contains, metal oxide as impurity. The method used to refine t...

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  15. Metal refined by cupellation process is

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  16. Which of the following pairs of metals is purified by VanArkel method

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  17. 100% copper is obtained from crude copper by

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  18. If the impurity in a metal has a greater affinity for oxygen and is mo...

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  19. Which of the following has maximum thermodynamic spontaneously at 400^...

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

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