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Auto reduction process is used in extrac...

Auto reduction process is used in extraction of

A

Cu

B

Hg

C

Al

D

Fe

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The correct Answer is:
A, B
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MOTION-METALLURGY-EXERCISE 2 (LEVEL - II)
  1. In the manufacture of metallic sodium by the fused salt electrolysis (...

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  2. The metal(s) which does/do not form amalgam is/are:

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  3. Auto reduction process is used in extraction of

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  4. Zone refining is used for purification of :

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  5. Which of the following process(es) are used for purification of Bauxit...

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  6. Metals which can be extracted by smelting process are :

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  7. the common impurities present in bauxite are

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  8. Which of the following reduction reactions are actually employed in co...

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  9. Which of the following cannot be obtained by electrolytic reduction of...

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  10. Which of the following ores are concentarted by froth floatation?

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  11. Which of the following statement(s) is/are common between roasting and...

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  12. Which of the following reaction(s) occurs during calcination?

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  13. Roasting can be performed in:

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  14. Which of the following is(are) sulphide ores?

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  15. Which of the following is(are) regarded as iron ores?

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  16. Which of the following employ downward movement or ore due to gravity?

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  17. Calcium silicate slag formed in extraction of iron

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  18. Amphoteric nature of aluminium is employed in which of the following p...

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  19. Noble metal(s) which are commerically extracted by cyanide process is(...

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  20. Carbon reduction method is commercially employed for commercial extrac...

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