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What is flux ? Give one example each of ...

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

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(i) ` SiO_(2) (ii) MgO`.
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DINESH PUBLICATION-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS -Assignment
  1. Explain why zinc oxide can be reduced to metal by heating with carbon ...

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

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

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

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  5. Define calcination.

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

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

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

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

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

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  11. Name two important ores of iron.

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

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

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  14. How is wrought iron different from steel ?

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

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

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

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  18. (i) Mention the principle behind the zone refining of metals. (ii) W...

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  19. What is the role of silica in the extraction of copper ?

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  20. Write the names of any two ores of silver and give their chemical form...

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