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Explain the process of hand picking....

Explain the process of hand picking.

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VGS PUBLICATION-BRILLIANT-PRINCIPLES OF METALLURGY-EXERCISE
  1. Mention the most important metals and non-metals from the following pr...

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  2. Give an example of auto reduction of sulphise ores.

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  3. Explain the process of hand picking.

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  4. What is the role of washing in enriching the ore?

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  5. Write the reactions inside the blast furnace.

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  6. Do all furnaces have same structure?

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  7. How do various metals in activity series react with steam?

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  8. How do various metals in activity series react with dilute strong acid...

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  9. How do you reduce purified ore to the metal of the top of activity ser...

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  10. What are the preventive techniques used in corrosion of metals?

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  11. Give some examples for corrosion.

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  12. What is 22 carat gold? Why it is preferred for making jewellery?

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  13. Write about electrolysis of NaCl.

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  14. Identify the metal present in the following Ores : Epsom salt,

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  15. Identify the metal present in the following Ores : Horn silver,

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  16. Identify the metal present in the following Ores : Cinnabar,

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  17. Identify the metal present in the following Ores : Galena

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  18. What is meant by extraction of metals?

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  19. Write the chemical equations of thermite reactions.

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  20. What is the difference between roasting and calcination? Give one exam...

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