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Explain the term calcination and ro...

Explain the term calcination and roasting with suitable examples of each.

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PRADEEP-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS -ADDITIONAL QUESTIONS (SHORT ANSWER QUESTIONS)
  1. What is the main difference between ? (i) Cupellation and poling (...

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  2. Differentiate between roasting and calcination.

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  3. Explain the term calcination and roasting with suitable exampl...

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  4. Carbonate ores are usualy subjected to calcination while sulphi...

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  5. What is a flux ? Discuss its types and uses in metallurgical o...

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  6. Differentiate between the following : (i) Flux and slag (ii...

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  7. Draw the Ellingham diagram for the formation of carbon monoxi...

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  8. Is carbon a satisfactory reducing agent for all metal oxides ? G...

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  9. What chemcial princpicl is involved in choosing a reducing agent for g...

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  10. What is the chief ore of iron ? Write chemical reactions taking ...

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  11. Write down the reactions taking place in different zones in the blast ...

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  12. Describe how the following changes are brought about : (i) P...

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  13. Describle the principal controlling each of the following processe...

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  14. Explain the following steps with chemical equations in the extr...

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  15. Describe the role of the following : (i) Limestone in the m...

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

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  17. Write the chemical reactions which take place in the followin...

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  18. Outline the principle of the method used for refining of (a...

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  19. Describe the principle involved in each of the following processes: ...

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  20. Outline the principples behind the refining of metals by the following...

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