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What is meant by benefaction process ?...

What is meant by benefaction process ?

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The process used to concentrate an ore is called the benefaction process. For example, froth floatation, electromagnetic separation, leaching, etc.
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PRADEEP-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS -ADDITIONAL QUESTIONS (Very Short Answer Questions)
  1. Name a sulphide ore of copper.

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  2. What is a mineral? How does it differ from an ore?

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  3. What is meant by benefaction process ?

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  4. What is gangue ?

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  5. What type of ores can be concentrated by magnetic separation method ...

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  6. Name a method used for removing gangue from sulphide ore.

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  7. (a) Why is it that only sulphide ores are concentrated by frot...

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  8. Write the name of the method of concentrated applied for the...

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  9. Out of PbS and PhCO 3 (ores of lead), which one is co...

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  10. Metal sulphides occur mainly in rocks and metal halides occur in lakes...

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  11. What is the role of collectors in froth floatation process ? G...

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  12. A sample of galena is contaminated with zinc blende. Name one chemical...

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  13. In the extraction of Al, impure alumina is dissolved in conc....

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  14. What is slag ? Give one example.

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  15. What type of ores are roasted?

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  16. What is meant by the term 'pyrometallurgy' ?

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  17. Indicate the temperature at which carbon can be used as a reducing age...

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  18. What is the role of coke in the extraction of iron from its ...

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  19. Name the reducing agent to obtain iron from Fe2 O 3 at hi...

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  20. Write a non - exothermic reaction takind place in the blast fur...

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