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Smelting involves reduction of metal oxi...

Smelting involves reduction of metal oxide with

A

carbon

B

carbon monoxide

C

magnesium

D

aluminium

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The correct Answer is:
A
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V PUBLICATION-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-QUESTION BANK
  1. Which of the following metals can be extracted by smelting

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

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  3. Smelting involves reduction of metal oxide with

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  4. Heating pyrites to remove sulphur is called

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

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  6. In the aluminothermite process alluminium acts as

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

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

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

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

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

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  12. Galena is an ore of

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

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  14. The froth floatation process is based upon

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  15. Which one of the following ores is best concentrated by froth floatati...

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  16. Cassiterite is an ore of

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  17. Cassiterite is concentrated by

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  18. Which of the following metals is extracted by. the electrometallurgica...

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  19. The methods chiefly. used for the extraction of lead and tin from thei...

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  20. In the extraction of Fe from 'Fe2 O3' the reducing agent is

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