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Oxide ores are concentrated by………...

Oxide ores are concentrated by………

A

Hand picking

B

hydraulic washing

C

froth floatation process

D

Magnetic sepration process

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The correct Answer is:
B
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Which type of ores can be concentrated by froth floatation method? Give two examples for such ores.

FULL MARKS-METALLURGY -Additional questions ( CHOOSE THE BEST ANSWER )
  1. Match the List-I and List-II correctly using the code given below.

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  2. The impurities associated with ores is……

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  3. Oxide ores are concentrated by………

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  4. Heaematite and tin stone are purified by …………

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  5. Froth flotation process is suitable for concentrating …………… ores.

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  6. Copper pyrite and zinc blende are purified by……..

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  7. Frothing agents used to separate ZnS from PbS is……

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  8. Depressing agents used to separate ZnS from PbS is ……..

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  9. Leaching is also called as……..

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  10. In the leaching process ,the metal present in the ore is converted int...

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  11. Gold ore is concentrated by…….

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  12. Bauxite is purified by…….

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  13. Which type of leaching process convert insoluble sulphide ores into ...

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  14. A chemist involves mining process and he got two ores together .If on...

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  15. The process in which the concentrated ore is strongly heated in the ab...

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  16. A chemical substance that forms an easily fusible slag with gangue is ...

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  17. Blistered copper is………………

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  18. Ignition mixture used in aluminothermic process is ………….

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  19. For spontaneous reaction ,the change in free energy should be…

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  20. The change in Gibbs free energy for a reaction is expanded by...........

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