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Sphalerite is concentrated by...

Sphalerite is concentrated by

A

gravity separation

B

froth floatation

C

magnetic separtion

D

hydraulic washing

Text Solution

Verified by Experts

The correct Answer is:
B
Sphalerite (ZnS) being a sulphide ore is concerned by froth floatation process.
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PRADEEP-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS -COMPETITION FOCUS (JEE(Main and Advanced)/MEDICAL ENTRANCE SPECIAL) MULTIPLE CHOICE QUESTIONS (I)
  1. NaCN is sometimes added in the froth flotation process as a depressant...

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  2. Which one of the following ores is best concentrated by froth floatati...

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  3. Sphalerite is concentrated by

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  4. Bauxite ore is made up of Al(2)O3 + SiO2 + TiO2 + Fe(2)O3 . This ore ...

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  5. In the leaching of Ag(2)S with NaCN, a stream air is also passed. It i...

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  6. The complex formed when Al(2)O(3) is leached from bauxite using concen...

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  7. Sulphide ores of metals are usually concentrated by both floatation pr...

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  8. In the equatio, 4M + 8 CN^(-) + 2 H2O + O2 to 4 [M(CN)2]^(-) ...

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  9. In the cyanide extraction process of silver from argentite ore, the ox...

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  10. Which one of the following reactions is an example for calcination pro...

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  11. When limestone is heated CO(2) gas is liberated. In metallurgy, this p...

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  12. Which of the following faction is of no significance for roasting sul...

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

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  14. In view of the signs of Delta(r)G^(@) for the following reactions : ...

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  15. Delta G^(@) vs T plot in the Ellingham's diagram slopes downward fo...

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  16. According to Ellingham diagram the oxidation reaction of carbon and ca...

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  17. Which series of reactions correctly represents chemical rections relat...

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  18. The following reaction take place in the blast in the proparation of i...

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  19. Identify the reaction that does not take place in a blast furnace

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  20. which of the following electronts is present as the impurity to the m...

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