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Role of limestone used in re extraction...

Role of limestone used in re extraction

A

Oxidation of Fe ore

B

Reduction of Fe ore

C

Formation of slag

D

Purification of Fe formed

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The correct Answer is:
C
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AAKASH SERIES-PRINCIPLES OF METALLURGY-PRACTICE EXERCISE
  1. The chemical composition of slag formed during smelting process in the...

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  2. Impurities in the zinc spelter are

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  3. Role of limestone used in re extraction

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  4. The purest form of commercial iron is

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  5. Percent purity of iron in cast iron is

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

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

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

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

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

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

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

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

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

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

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

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  17. Magnesium oxide is reduced in the Hansging method using

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  18. The green mass formed when copper is exposed to moist air has the same...

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  19. The process of bringing the metal or its ore into solution by the acti...

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  20. Zr + 2I2 to Zr I4 overset(1800k) to Zr + 2I2 This sequence ...

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