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Electrolytic refining's is ued to purify...

Electrolytic refining's is ued 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
Cu and Zn
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MODERN PUBLICATION-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-COMPETION FILE (Objective Questions) (Multiple Choice Question from competitive examinations)
  1. The metal extracted by leaching with cyanide is

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  2. Purification of aluminium is called

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  3. Electrolytic refining's is ued to purify which of the following metals...

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  4. the common impurities present in bauxite are

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  5. Carnallite is an ore of

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  6. Which of the following is not a mineral of iron?

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  7. The one that is not a carbonate ore is:

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  8. Match the refining methods (Column I) with metals (Column II).

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  9. The correct statement is :

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  10. The pair that does NOT require calcination is :

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  11. The reaction that does NOT define calcination is :

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  12. Match the ores (Column A) with the metals (Column B) :

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  13. in the Hall -Heroult process, aluminium is formed at the athode , ...

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  14. The correct statement is

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  15. Assertion : For the extraction of iron, haematite are is used. Reaso...

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  16. The ore that contains both iron and copper is :

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  17. Hall-Heroult's process is given by :

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  18. Extraction of zinc from zinc blende is achieved by:

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  19. Oxidation states of the metal in the minerals haematite and magnetite ...

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  20. In the cyanide extraction process of silver from argentite ore, the ox...

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