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What is the role of cryolite in the metallurgy of aluminium ?

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MODERN PUBLICATION-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-EXERCISE
  1. State whether the statement is true or false- Vegetables are animal pr...

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  2. Give an example of zone refining of metals.

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  3. What is the role of cryolite in the metallurgy of aluminium ?

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  4. State whether the statement is true or false- Photosynthesis process i...

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  5. State whether the statement is true or false- Artificial gold is an al...

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  6. What are calcination and roasting ? In which type of ores are these pr...

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  7. Which metals are generally extracted by electrolytic process? Which po...

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  8. What types of metals are likely to exist in native state in nature ? G...

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

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  10. Define calcination and roasting.

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  11. Match the items of column I with items of column II

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  12. Name two metals which can be refined by Van Arkel method.

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  13. Match the items of column I with items of column II

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  14. Define the following term : Ore benefaction.

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  15. What is Hydrometallurgy ?

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  16. what is pyrometallurgy ?

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  17. Copper is extracted from copper pyrites by roasting the ore partially ...

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  18. Why the graphite rods in the extraction of aluminium from molten Al2O3...

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  19. What is froth floatation process ? Name the ores which are concentrate...

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  20. Monel metal is an alloy which is made of mixture of,,.

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