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What is cupellation ?...

What is cupellation ?

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Cupellation is a method used for refining of those metals which contain impurities of other metals which form volatile oxides. For example, removal of last traces of lead from silver.
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MODERN PUBLICATION-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-Conceptual Questions
  1. Which metals are generally extracted by the electrolytic processes ? W...

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  2. What is the composition of 'Copper matte'?

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  3. What is cupellation ?

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  4. What type of ores are roasted?

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  5. Granulated zinc is obtained by

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  6. What is Kroll process ?

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  7. The iron obtained from the blast furnace is called:

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  8. Describe the principle of froth flotation process. What is the role of...

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  9. Name three forms of iron. How do these three forms differ?

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  10. Reducing agent of haematite in blast- furnace is

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  11. (a) What is a slag ? (b) Give the principle of zone refining ? ( c...

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  12. Name the method used for the refining of (i) Nickel (ii) Zirconium.

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  13. Pine oil is generally added in the froth floatation process. Explain.

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  14. Giving examples differentiate between roasting and calcination.

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  15. What is meant by benefaction process ?

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  16. Write the equation of the net reaction taking place in Hall Heroult el...

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  17. Why is the froth flotation method selected for the concentration of Su...

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  18. Which of the following reactions taking place in the blast furnace dur...

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  19. Why Al cannot be reduced by carbon?

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  20. What is the role of flux in metallurgical processes?

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