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Sulphide ores of metals are usually conc...

Sulphide ores of metals are usually concentrated by forth floation proces. Which one of the following sulphide ores offers an exception and is conventrated by chemical leaching'

A

Sphaterite

B

Argentile

C

Galena

D

Copper pynite

Text Solution

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The correct Answer is:
B
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AAKASH INSTITUTE-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-Assignment (Section-C) Previous Years Question
  1. Match the following

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  2. Which of the following statements, about the advantage of roasting of ...

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  3. Sulphide ores of metals are usually concentrated by forth floation pro...

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  4. The mass of carbon anode consumed (giving only carbon dioxide) in the ...

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  5. In which of the following processes, fused sodium hydroxide is electro...

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  6. Which of the following does not contain aluminium?

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  7. Which of the following does not contain Mg?

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  8. Carborundum is a

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  9. In the basic Bessemer process for the manufacture of steel, the lining...

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  10. Mond's process is used for

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  11. Which method of purification is represented by the following equations...

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  12. Which of the following sulphides when heated strongly in air gives the...

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  13. The most important ore of tin is

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  14. Heating of ore in presence of air to remove sulphure impurities is cal...

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  15. The process used for the extraction of sodium is called :

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  16. Among the metals Cr,Fe,Mn,Ti,Ba, and Mg, the one that cannot be obtain...

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  17. Chemical used as a depressant in separatin ZnS from PbS in froth-float...

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  18. Which ore contains both iron and copper?

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  19. To dissolve argentite ore which of the following is

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  20. The iron obtained from the blast furnace is called:

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