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Describe the principle of extraction of ...

Describe the principle of extraction of each of the following (b) `Zn` from `Zn O`

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V PUBLICATION-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-QUESTION BANK
  1. Name three metals.which occur in nature miainly as oxide ores. Name on...

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  2. What chemical principle is involved in choosing a reducing agent for g...

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  3. Describe the principle of extraction of each of the following (b) Zn ...

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  4. Discuss some of the factors, which need consideration before deciding ...

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  5. Which of the folllowing benefaction processes is used for the mineral ...

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  6. The impurities associated with the ore after mining are collectively c...

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  7. In which of the folllowing minerals, aluminium is not present?

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  8. The process in which metal oxide is reduced to metal by Al is called

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  9. During smelting, the additional substance added, which combines with i...

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  10. An ore after levigation is found to have acidic impurities. Which of t...

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  11. Which of the following metals is. ieached by cyanide process

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  12. Which of the following metals can be extracted by smelting

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  13. Alkalt metáls do not exist in free state in niature because. these are

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  14. Smelting involves reduction of metal oxide with

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  15. Heating pyrites to remove sulphur is called

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  16. Extraction of silver form 'Ag2 ~S' by the use of soidum cyanide is an ...

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  17. In the aluminothermite process alluminium acts as

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  18. In the extraction of copper from its sulphide ore, the metal is formed...

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  19. Silver is obtained from Na [ '.Ag(CN)2]' by reaction with

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

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