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Name the common elements present in the anode mud in electrolytic refining of copper. Why are they so present?

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The common elements in anode mud in electrolytic refining of copper are antimony, selenium, tellurium, silver, gold and platinum. These elements are less reactive. Hence, they are not affected by `CuSO_(4)-H_(2)SO_(4)` solution. So they settle down under anode as anode mud.
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CHHAYA PUBLICATION-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-NCERT EXERCISE QUESTIONS
  1. Explain (ii) Column chromatography.

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  2. Out of C and CO, which is better reducing agent at 673K ?

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  3. Name the common elements present in the anode mud in electrolytic refi...

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  4. Write the reactions taking place in different zones in the blast furna...

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  5. Write chemical reactions taking place in the extraction of zinc from z...

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

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  7. What is meant by the term, chromatography?

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  8. What criterion is followed for the selection of the stationary phase i...

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  9. Describe a method for refining nickel.

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

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  11. Giving examples, differentiate between roasting and calcination.

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  12. How is cast iron different from pig iron?

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

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  14. Differentiate between minerals and ores.

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

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  16. How is leaching carried out in case of low grade Cu ores ?

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

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  18. The value of (Delta(f)G^(@)) for formation of Cr(2)O(3) is -"540kJ.mol...

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

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

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