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The process in which metal oxide is red...

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

A

smelting

B

aluminothermy

C

hydreothermy

D

none of these

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The correct Answer is:
B
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V PUBLICATION-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-QUESTION BANK
  1. The impurities associated with the ore after mining are collectively c...

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

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

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

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

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

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

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

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  9. Smelting involves reduction of metal oxide with

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  10. Heating pyrites to remove sulphur is called

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

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  12. In the aluminothermite process alluminium acts as

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

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

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

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  16. Heating an ore in the absence of air. below its melting point is calle...

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  17. In the froth floatation process for benefication of the ores, the ore ...

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  18. Galena is an ore of

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  19. For which ore of the metal, froth floatation method is used for concen...

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  20. The froth floatation process is based upon

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