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What is hydrometallurgy?...

What is hydrometallurgy?

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Which of the following metal can be extracted by hydrometallurgy?

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

Assertion : Hydrometallurgy involves dissolving the ore in a suitable reagent followed by precipitation by a more electropositive metal. Reason : Copper is extracted by hydrometallurgy from low grade ore.

The statement that is NOT correct is that (1) A furnace lined with haematite is used to convert cast iron to wrought iron. (2) Collectors enhance the wettability of mineral particles during froth floatation. (3) In vapour phase refining, metal should form a volatile compound. (4) Copper from its low-grade ores is extracted by hydrometallurgy.

Explain the method of preparation of copper by hydrometallurgy.

A N EXCEL PUBLICATION-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-QUESTION BANK
  1. Which of the following is the ore of zinc?

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  2. There are servral methods for refining metals. Explain a method for re...

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  3. Metals are extracted from their ores. Among the following which metal ...

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  4. Carbonate ores are usually subjected to calcination, while sulphide or...

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  5. Leaching is a process of concentration of ores. Explain the leaching o...

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  6. Which of the following is not an Ore of Iron? Haematite,Magnetite,Mala...

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  7. Explain froth floatation process for the concentration of Ore.

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  8. During metallurgy, the metal extracted may still contain impurities. D...

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  9. Name two metals that are refined by distillation.

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  10. How would you convert crude germanium into ultrapure germanium? Explai...

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  11. What is the role of limestone (CaCo3) in the extraction of iron?

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  12. Alumina is mixed with cryolite and subjected to electrolysis to extrac...

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  13. What is pig iron?

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  14. What is hydrometallurgy?

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  15. Explain the method of preparation of copper by hydrometallurgy.

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  16. Explain the method of refining copper.

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  17. Copper is a useful metal and is generally extracted from copper pyrite...

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  18. How is blister copper obtained from copper matte?

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  19. Why is blister coper called so?

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  20. Give any two uses of copper.

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