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Which of the following is not correctly ...

Which of the following is not correctly matched

A

Removal of its own oxide impurity from impure Cu `rArr` Poling process

B

) Removal of Pb impurity from impure Ag `rArr` Cupellation

C

Obtaining wrought iron from cast iron `rArr` Bessemerisation

D

Refining of Nickel `rArr` Mond.s process

Text Solution

Verified by Experts

The correct Answer is:
C
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ALLEN-INORGANIC CHEMISTRY-METALLURGY
  1. Select correct matching :-

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  2. Read the following statements :- (I) Al has greater affinity than t...

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  3. Which of the following is incorrect ?

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  4. Which of the reactions occurs in slag formation zone in blast furnace ...

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  5. Giving suitable example, describe the importance of the formation of c...

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  6. Both copper carbonate and copper hydroxide are present in :-

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  7. Ag(2)S +underset("Excess")(KCN) to [Ag(CN)(x)]^(-n) [Ag (CN)(x)]^(-n...

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  8. When ZnS and PbS minerals are present together, Then NaCN added to sep...

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  9. Which of the following statement is not correct regarding calcination ...

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  10. "Ore" overset("Calcination")to "Residue" overset("dil.HNO"(3))tounders...

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  11. Which of the following is not correctly matched

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  12. The method of zone refining of metals is based on the principle of

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  13. Aluminium oxide is not reduced by chemical reactions due to

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  14. Which of the following sulphide ore is not concentrated by froth-float...

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  15. Which of the following statements is correct regarding the slag obtain...

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  16. Which of the following factors is of no significance for roasting sul...

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  17. In the context of the Hall-Heroult process for the extraction of Al, w...

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  18. Which of the above curve is wrongly presented -

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  19. Which of the above metal oxide is having minimum thermal decomposition...

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  20. Match column (I) (process) with column (II) (electrolyte) {:("Column...

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