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Which of the following process is used f...

Which of the following process is used for concentration of ores and for refining metals

A

Liquation

B

Leaching

C

distillation

D

Poling

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The correct Answer is:
A
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AAKASH SERIES-PRINCIPLES OF METALLURGY-PRACTICE EXERCISE
  1. In sulphatizing roasting of Zns, products are

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  2. In order to refine blister copper it is melted in a furnance and is st...

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  3. Which of the following process is used for concentration of ores and f...

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  4. The chemical composition of slag formed during smelting process in the...

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  5. Impurities in the zinc spelter are

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  6. Role of limestone used in re extraction

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  7. The purest form of commercial iron is

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  8. Percent purity of iron in cast iron is

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  9. Native silver metal forms a water soluble complex with a dilute aqueou...

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  10. Which of the following metals can be used for precipitation of silver ...

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  11. In the Down's process at low temperature sodium extracted is more beca...

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  12. Aqueous sodium cyanide is used as a reagent in the metal extraction. T...

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  13. Metal is precipitated from Au(CN)(4)^(3-) using zinc as a precipitant....

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  14. The best electrolyte for the extraction of magnesium metal is

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  15. Which one of the following is the mineral for tin?

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  16. Some statements about the below Ellingham diagram are given below ...

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  17. Carbon cannot be used in the reduction of Al2 O3 because

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  18. Spinels are denoted with the formula MAl2 O4, where 'M' is

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  19. Magnesium present in the sea water is precipitated using 'X' and preci...

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  20. Magnesium oxide is reduced in the Hansging method using

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