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Why do some metals occur in the native r...

Why do some metals occur in the native rate ?

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Why do some metals occur in the native state?

Identify the metal that occurs in the native state in nature.

Reactive metals occur in native state.

Which of following metals occurs in native state?

In general which metal do you expecto to occur in the native state in nature? Give example.

The metal not found in the native state is-

DINESH PUBLICATION-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS -Assignment
  1. How is copper metal extracted from its sulphide ore ?

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

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

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  4. Define calcination.

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

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

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

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

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

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  10. Name two important ores of iron.

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

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

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  13. How is wrought iron different from steel ?

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

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

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

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

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

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

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  20. (a) Name the method of refining of nickel. (b) What is the role of c...

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