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What is pyrometallurgy ?...

What is pyrometallurgy ?

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Pyrometallurgy may be defined as the process of reducing a metal oxide by heating with either coke or some reducing agent such as aluminium, magnesium etc.
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What is meant by the term ' pyrometallurgy' ?

Which of the following pair of ores can not be converted into corresponding metals by pyrometallurgy ?

Which of the following is better reducing agent at 673K in pyrometallurgy?

How mant metals are commercially extracted by pyrometallurgy from the given metal ? Cu, Fe, Sn, Au, K, Na .

What is the main difference between ? (i) Cupellation and poling (ii) Hydrometallurgy and pyrometallurgy (iii) Leaching and Levigation

Define the following terms: (i) Ore benefaction (ii) Hydrometallurgy. (iii) Pyrometallurgy.

(a) What is a slag ? (b) Give the principle of zone refining ? ( c) An ore sample of galena (PbS) is contaminated with zinc blende (ZnS) . Give an example of a chemical which can be used to concentrate galena selectively by froth flotation process. (d) What is meant by the term 'Pyrometallurgy' ?

DINESH PUBLICATION-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS -Questions From Board Examinations
  1. The extraction of Au by leaching with NaCN both oxidation and reductio...

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  2. What is the role of following ? (a) Depressant in the froth floatati...

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  3. What is pyrometallurgy ?

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  4. Why is froth floatation process selected for the concentration of the ...

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  5. Explain the role of cryolite in the electrolytic reduction of alumina.

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  6. Why can zinc oxide be reduced to the metal by heating with carbon and ...

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  7. Why is the extraction of copper from pyrites more difficult than that ...

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  8. State briefly the principles which serve as the basis for the followin...

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  9. What is the role of iodine in the refining of titanium ?

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  10. Describe the role of NaCN in the extraction of gold from gold ore.

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  11. What is the role of iodine in the refining of zirconium (Zr) ?

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  12. How is zinc oxide converted into metallic zinc ?

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  13. Outline the principle of the method used for refining of (a) Nickel ...

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  14. Differentiate between mineral and ore.

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  15. Describe the principle controlling the extraction of cast iron from pi...

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  16. Describe the principle behind the recovery of silver ore leached with ...

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  17. What happens when : (i)Cu(2)O undergoes self reduction in a silica l...

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  18. (a) What role does cryolite play in Hall Harnoult process ? (b) How ...

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  19. Give one example each of (i) acidic flux (ii) basic flux.

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  20. Distinguish between the following : (a) Ores and minerals (b) Flux a...

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