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Name the process that is employed to re...

Name the process that is employed to refine aluminium.

A

Vapour phase method

B

Electrolytic refining

C

Zone refining

D

Van-Arkel method

Text Solution

Verified by Experts

The correct Answer is:
C
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SURA PUBLICATION-MATALLURGY-Additional Questions and Answers
  1. Among the following, one does not belong to calcination. Pick the odd ...

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  2. The iron formed in blast furnace is calle d

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  3. Name the process that is employed to refine aluminium.

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  4. Which of the following will give respective metal by self reduction ?

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  5. Why is the extraction of copper form pyries more difficult then that f...

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  6. Which among the following reaction represents the formation of slag ?

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  7. Which one of the following element is present as an impurity in pig ir...

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  8. Which of the following mineral contains calcium as well as magnesium ?

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  9. In the froth-floatation process the collectors such as pine oil and xa...

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  10. Concentration of copper pyrites is done by -

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  11. Identify the decreasing order of carbon content in different forms of ...

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  12. What is the action of water on (a) sodium (b) magnesium, and (c) alumi...

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  13. The blistered appearance of Cu obtained from the reverberatory furnace...

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  14. Identify the halide ore among the following.

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  15. Identify the metal that occurs in free state.

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  16. 2PbS + 3O(2) rarr 2PbO + 2SO(2) Name the process.

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  17. The process of heating of copper pyrites to remove sulphur is called

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  18. Delta G^(@) vs T plot in the Ellingham's diagram slopes downward the r...

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  19. Pick out the alloy that contains a non-metal as constituent in it

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  20. Ignition mixture used in aluminothermic process is ………….

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