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Electrolytic refining is used to purify ...

Electrolytic refining is used to purify which of the following metals ?

A

`Cu` and `Zn`

B

`Ge` and `Si`

C

`Zr` and `Ti`

D

`Zn` and `Hg`

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ALLEN-METALLURGY-EXERCISE -04
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  2. In the metallurgy of aluminium

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  6. Below point 'A' FeO can (a)be reduced by carbon monoxide only. (b)...

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  7. For the reduction of FeO at the temperature corresponding to point D, ...

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  8. Which of the following options are correct ?

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  9. In the extraction of aluminium by Hall-heroult Process, purified Al(2)...

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  10. Which of the following statements is correct about the role of collect...

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  11. In the froth floatation process, zinc sulphide and lead sulphide can b...

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  12. Common impurities present in bauxite are …….

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  13. Which of the following ore are concentrated by froth floatation ?

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  14. Which of the following reaction occur during calcination ?

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  15. For the meallurgical process of which of the ores calcined ore can be ...

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  16. The main reaction occuring in blast furnance during extraction of iron...

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  17. In which of the following method of purification, metal is converted t...

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  18. Which of the following statements are correct?

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  19. Extraction of chlorine from brine is based on

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  20. Why is an external emf of more than 2.2 V required for the extracation...

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