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Describe the role of SiO2 in the extract...

Describe the role of `SiO_2` in the extraction of Copper from Copper matte.

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R G PUBLICATION-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-EXERCISE
  1. Write the composition of German Silver.

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  2. Which is the purest form of commercial iron?

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  3. Describe the role of SiO2 in the extraction of Copper from Copper matt...

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  4. Why Copper matte is put in Silica lined converter?

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  5. What does a steep increase in the slope of a line an Ellingham diagram...

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  6. Name the process by which an ore of tin containing FeCrO4 in concentra...

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  7. Write two important ores each from iron & copper.

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  8. Describe the principle of froth flotation process.

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  9. Write the reactions involved in leaching process of alumina from bauxi...

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  10. Giving example differentiate between "roasting"& calcination.

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  11. What is pyro metallurgy? Describe the conditions of the equation used ...

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  12. From the following diagram suggest a condition under which magnesium c...

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  13. Write down the reaction taking place in different zones in the blast f...

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  14. How wrough iron is prepared from cast iron?

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  15. In reverberatory furnace how Cu is extracted from copper matte? Write ...

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  16. The reaction, Cr2O3 + 2Al rarr Al2O3 + 2Cr (DeltaG^@ = -421KJ) is ther...

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  17. Why Zinc not extracted from Zinc oxide through reduction using CO?

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  18. What is the role of graphite rod in the electrometallurgy of aluminium...

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  19. What is hydro metallurgy? How Cu is extracted by this method.

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  20. Name the processes from which Chlorine is obtained as a by product.

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