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Name the principle ore of aluminium. How...

Name the principle ore of aluminium. How is the metal extracted from this ore ?

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Bauxite. By electrochemical reduction.
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DINESH PUBLICATION-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS -Assignment
  1. Which chemical principle is involved in choosing a reducing agent for ...

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  2. Name the principle ore of aluminium. How is the metal extracted from t...

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  3. What is the role of NaCN in the extraction of silver from silver ore ?

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  4. Explain why zinc oxide can be reduced to metal by heating with carbon ...

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  5. How is copper metal extracted from its sulphide ore ?

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  6. What is flux ? Give one example each of acidic and basic flux.

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  7. Why do some metals occur in the native rate ?

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  8. Define calcination.

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  9. State briefly the principles which serve as basis for the following op...

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  10. Give definitions of following along with examples. (a) Calcination ...

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  11. What happens when : (i)Cu(2)O undergoes self reduction in a silica l...

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  12. What role does cryolite play in Hall Harnoult process ?

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  13. Distinguish between the following : (a) Ores and minerals (b) Flux a...

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  14. Name two important ores of iron.

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  15. Write the method of extraction of iron and the chemical reactions invo...

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  16. Name a method used to remove gangue impurity from sulphide.

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  17. How is wrought iron different from steel ?

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  18. Which reducing agents are employed to get copper from the leached low ...

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  19. What is the role of zinc metal in the extraction of silver ?

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  20. What is the role of NaCN in the extraction of gold ? (ii) What is co...

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