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Describe the principle of froth flotatio...

Describe the principle of froth flotation process. What is the role of a stabiliser and of a depressant ? Give one example of each.

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PRADEEP-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS -ADDITIONAL QUESTIONS (SHORT ANSWER QUESTIONS)
  1. What is meant by concentration of ores ?

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  2. Describe magnetic separation method of concentration of ores.

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

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  4. Describe the principle of froth floatation process.

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

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  6. Describe the leaching of aluminium ore.

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

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

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

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

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

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

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  13. Differentiate between roasting and calcination.

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

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

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

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

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

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

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

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