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Blast furnace is employed in the smeltin...

Blast furnace is employed in the smelting of oxide ore with coke and flux in the metallurgy of

A

Iron

B

Copper

C

Lead

D

All the above

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The correct Answer is:
D
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ERRORLESS-GENERAL PRINCIPLES & PROCESSES OF ISOLATION OF ELEMENTS-NCERT BASED QUESTIONS (Reduction of Free Metal)
  1. The final step for the extraction of copper from copper pyrite in Bess...

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  2. Which of the following fluxes is used to remove acidic impurities in ...

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  3. Blast furnace is employed in the smelting of oxide ore with coke and f...

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  4. Electrometallurgical process is used to extract

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  5. The electrolytic method of reduction is employed for the preparation o...

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  6. Aluminium is prepared in large quantities by

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  7. Thermite process is used to extract metals

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  8. Iron is obtained on a large scale from Fe2O3 by

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  9. After partial roasting, the sulphide of copper is reduced by

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  10. In the metallurgical extraction of zince from ZnO the reducting agent ...

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  11. The metal oxide which cannot be reduced to metal by carbon is

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  12. Which process of reduction of mineral to the matel is suited for the e...

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  13. Which of the following reaction is an example of autoreduction?

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  14. In the extraction of Cu from its sulphide ore, the metal is formed by ...

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  15. Elecyroltic refining is used to purify which of the following metals?

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

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  17. Matte contains mainly

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  18. The metallurgical process in which a metal is obtained in a fused stat...

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  19. The slag obtained during the extraction of copper from coper pyrites i...

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  20. Flux is used to remove

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