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Differentiate between “minerals” and “or...

Differentiate between “minerals” and “ores”.

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Minerals : the natural subsyances in which the metals or their compounds occur in the earth is called minerais .
Ores : the minelas from which the metals can be be ciaveniently and econmically extacted are called ores .
Note : All ores arae minerals but all minelas are not ores .
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NCERT-GENERAL PRINCIPLES AND PROCESSESS OF ISOLATION OF ELEMENTS -Exercise
  1. Write down the chemical reactions taking place in the extraction of zi...

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  2. State the role of silica in the metallurgy of copper.

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  3. Which method of refining may be more suitable if element is obtained i...

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  4. Which method of refining will you suggest for an element in which impu...

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  5. Describe a method for refining nickel.

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  6. How can you separate alumina from silica in a bauxite ore associated w...

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  7. Giving examples differentiate between roasting and calcination.

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  8. How is ‘cast iron’ different from ‘pig iron”?

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  9. Differentiate between “minerals” and “ores”.

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  10. Why copper matte is put in silica lined converter?

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

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  12. How is leaching carried out in case of low grade copper ores?

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  13. Why is zinc not extracted from zinc oxide through reduction using CO?

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  14. The value ofDelta (f) f^(Ө) for formation of Cr(2) O(3) is – 540 kJmol...

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  15. Out of C and CO, which is better reducing agent for ZnO?

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  16. The choice of a reducing agent in a particular case depends on thermod...

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  17. Name the processes from which chlorine is obtained as a by-product. Wh...

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  18. What is the role of graphite rod in the electrometallurgy of aluminium...

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  19. Outline the principles of refining of metals by the following methods ...

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  20. Predict conditions under which Al might be expected to reduce MgO.

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