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Write the chemical equations involve...

Write the chemical equations involved in the preparation of pure alumina from bauxite by Baeyer's process.

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PRADEEP-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS -ADDITIONAL QUESTIONS (SHORT ANSWER QUESTIONS)
  1. What is meant by leaching ? Give reactions involved during lea...

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  2. Describe the leaching of aluminium ore.

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

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

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

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

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

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

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  9. Differentiate between roasting and calcination.

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

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

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

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

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

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

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

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

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

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

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

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