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Which one of the following ores is treat...

Which one of the following ores is treated by chemical leaching

A

Galena

B

Copper pyrite

C

Copper glance.

D

Argentite

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The correct Answer is:
D
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DINESH PUBLICATION-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-REVISION QUESTIONS FROM COMPETITIVE EXAMS.
  1. Which metal has a greater tendency to form metal oxide

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

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  3. Which one of the following ores is treated by chemical leaching

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  4. Auto reduction is employed in the metallurgy of

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

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

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

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

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

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

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  11. The incorrect statement among the following is

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

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

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

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

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

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

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  18. Calamine is an ore of

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  19. Bauxite has composition

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  20. Which of the following statements is false ?

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