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Explain the role of the following in the...

Explain the role of the following in the extraction of metals from their ores : Silica in the extraction of copper.

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MODERN PUBLICATION-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-EXERCISE
  1. Explain the role of the following in the extraction of metals from the...

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  2. Explain the role of the following in the extraction of metals from the...

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  3. Explain the role of the following in the extraction of metals from the...

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  4. Why is the reduction of a metal oxide easier if the metal formed is in...

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  5. Explain magnetic separation with the help of diagram.

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  6. Explain Mond’s process used for refining of nickel.

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  7. Explain the magnetic separation of Tinston ore?

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

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  9. What is the Commercial name of mercuric sulphide?

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  10. Giving examples, differentiate between roasting and calcination.

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  11. How is Cast iron different from Pig iron ?

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  12. What is magnetic separation method for concentration of ore?

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  13. The chemical name for Vermilian is

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  14. Fill in the blanks with appropriate answer- Mercuric sulphide is also ...

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  15. Describe the role of the following in the processes mentioned: Iodine ...

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  16. State whether the statement is true or false- Vermilian is another nam...

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  17. State whether the statement is true or false- Vegetables are animal pr...

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  18. Give an example of zone refining of metals.

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

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

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