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Name the method of refining of metals su...

Name the method of refining of metals such as Germanium.

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Zone refining is used for the purification of metals like germanium.
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Name one method for the refining of metals.

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U-LIKE SERIES-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-LONG ANSWER QUESTIONS-I
  1. What is the role of depressant in froth floatation process?

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  2. Write the name of reducing agent to obtain iron from Fe(2)O(3) at high...

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  3. Name the method of refining of metals such as Germanium.

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  4. In the extraction of Al, impure Al(2)O(3) is dissolved in conc. NaOH t...

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  5. What is the role of coke in the extraction of iron from its oxides?

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  6. Name the method of refining of nickel.

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  7. What is the role of cryolite in the extraction of aluminium?

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  8. What is the role of limestone in the extraction of iron from its oxide...

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  9. Write the role of I2 in the Arkel method of refining.

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  10. Write the role of Cryolite in the extraction of aluminium.

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  11. Write the role of Dilute NaCN in the extraction of silver.

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  12. Indicate the principle behind the method used for the refining of Nick...

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  13. What is the role of dilute NaCN in the extraction of gold?

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  14. What is 'copper matte'?

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  15. Indicate the principle behind the method used for the refining of zinc...

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  16. What is the role of silica in the extraction of copper?

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  17. Which form of the iron is the purest form of commercial iron?

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  18. Name the method of refining to obtain silicon of high purity.

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  19. What is the role of SiO(2) in the extration of copper?

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  20. What is the role of depressant in froth floatation process?

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