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Sulphide ores of metals are usually conc...

Sulphide ores of metals are usually concentrated by froth floatation process. Which one of the following sulphide ores offers an exception and is concentrated by chemical leaching?

A

Sphaterite

B

Argentile

C

Galena

D

Copper pynite

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The correct Answer is:
B
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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'

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A: Cuprite is concentrated by froth floatation process R: Cuprite is the sulphide ore.

AAKASH INSTITUTE ENGLISH-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 froth floatation p...

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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

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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 process of purification is represented by the following reaction...

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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. The ore that contains both iron and copper is: a. malachite b. dolomit...

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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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