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What is meant by leaching ? Give rea...

What is meant by leaching ? Give reactions involved during leaching of alumina.

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PRADEEP-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS -ADDITIONAL QUESTIONS (SHORT ANSWER QUESTIONS)
  1. Describe the principle of froth flotation process. What is the role of...

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  2. Describe the principle of froth floatation process.

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  3. What is meant by leaching ? Give reactions involved during lea...

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  4. Describe the leaching of aluminium ore.

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  5. Write the chemical equations involved in the preparation of p...

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  6. Describe the pinciple controlling the preparation of pure alumin...

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  7. Mention the role of cryolite in the extraction of aluminium.

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  8. Silver ores and native gold have to be leached with metal cya...

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  9. Describe the role of the following : (i) NaCN in the extractio...

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  10. What is the main difference between ? (i) Cupellation and poling (...

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  11. Differentiate between roasting and calcination.

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

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

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

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

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

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

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

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

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

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