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An ore of galena (PbS) is contaminated w...

An ore of galena (PbS) is contaminated with Zinc blende (ZnS). Name one chemical which can be used to concentrate galena selectively by froth floatation process.

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MODERN PUBLICATION-GENERAL PRINCIPLE OF ISOLATION OF ELEMENTS-EXERCISE
  1. How is copper extracted from its low grade ore?

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  2. Between CO and C , which is better reducing agent at 983 k

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  3. An ore of galena (PbS) is contaminated with Zinc blende (ZnS). Name on...

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

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  5. At a site , low grade copper ores are available and zinc and iron scra...

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  6. Copper can be extracted by hydrometallurgy but not zinc. Explain.

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  7. Name the method used for refining of Nickel metal.

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  8. Which solution is used for the leaching of silver metal in the presenc...

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  9. Out of C and CO, which is a better reducing agent in the lower tempera...

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  10. Give an example of zone refining of metals .

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

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  12. Name the method used for removing gangue from sulphide ores.

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  13. How is wrought iron different from cast iron ?

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  14. Discuss the gravity separation method of concentration of ores.

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  15. Discuss froth flotation method of concentration of ore.

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  16. Discuss the magnetic separation method of concentration of ores.

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  17. Discuss leaching method of concentration of ores.

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  18. Discuss the process of conversion of Ores into oxides by (1) calcinati...

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  19. What is the role of depressant in froth flotation process ?

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  20. Write notes on carbon reduction process

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