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Which statement is correct ?...

Which statement is correct ?

A

Gangues are carefully chosen to combine with the slag present in the ore to produce easily fusible flux to carry away the impurities

B

Slags are carefully chosen to combine with the flux present in the ore to produce easily fusible gangue to carry away the impurities

C

Gangues are carefully chosen to combine with the flux present in the ore to produce easily fusible slag to carry away the impurities

D

Fluxes are carefully chosen to combine with the gangue present in the ore to produce easily fusible slag to carry away the impurities

Text Solution

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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. Reverberatory furnace is epmloyed in the metallurgincal process main...

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  2. In the metallurgy of iron, when limestone is added to the blast furnac...

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  3. Which statement is correct ?

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  4. The final step for the extraction of copper from copper pyrite in Bess...

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

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

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  7. Electrometallurgical process is used to extract

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

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  9. Aluminium is prepared in large quantities by

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  10. Thermite process is used to extract metals

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

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

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

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

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

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

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

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

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

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  20. Matte contains mainly

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