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The ore that is concentrated by froth fl...

The ore that is concentrated by froth floatation process is

A

Zincite

B

Cinnabar

C

Bauxite

D

Malachite

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The correct Answer is:
B
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Froth floatation process is based on

Which one of the following ores is not concentrated by froth floatation process ?

What type of ores can be concentrated by froth floatation process ? Explain how can the process be carried out ?

Statement-1:Sulphide ores are concentrated by froth floatation process. Statement-2: Pine oil acts as a frothing agent in froth floatation process.

DINESH PUBLICATION-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-REVISION QUESTIONS FROM COMPETITIVE EXAMS.
  1. Which one of the following ores is treated by chemical leaching

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  2. Auto reduction is employed in the metallurgy of

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  3. The ore that is concentrated by froth floatation process is

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  4. In aluminium extraction by Bayer process, alumina is extracted from ba...

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

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  6. When copper pyrites is roasted in excess of air, a mixture of CuO + ...

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

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  8. The auto reduction process is not used in the metallurgy of

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  9. The incorrect statement among the following is

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  10. Which of the following is used in thermine welding ?

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  11. Which of the following methods is used for obtaining Aluminium metal ?

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  12. According to Ellinigliam diagram, the oxidation reaction of carbon to ...

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  13. In the equation , 4M + 8CN^(-) + 2H(2)O + O rarr 4[M(CN)2]^(-) + 4OH^(...

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  14. Oxidation states of the metal in the mineral haematite and magnetite ,...

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  15. Which of the following does not occur as sulphide ore. ?

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  16. Calamine is an ore of

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  17. Bauxite has composition

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  18. Which of the following statements is false ?

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  19. In view of the sign of delta(n)G^(o) for the following reaction : Pb...

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  20. The following reactions take place in the blast furnace in the prepara...

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