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In the metallurgy of aluminium...

In the metallurgy of aluminium_________

A

`AI^(3+)` is oxidised to `AI(s)`

B

graphite anode is oxidised to carbon monoxide and carbon dioxide

C

oxidation state of oxygen changes in the reaction at anode

D

oxidation state of oxygen changes in the overall reaction involved in the process

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ALLEN-METALLURGY-EXERCISE -04
  1. In the exteraction of copper from its sulphide ore, the metal is fanal...

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  2. Brine is electrolysed by using inert electrodes. The reaction at anode...

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  3. In the metallurgy of aluminium

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

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  5. Extraction of gold and silver involves leaching the metal with CN^(-) ...

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  6. Choose the correct option of temperature at which carbon reduced FeO t...

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  7. Below point 'A' FeO can

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

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  9. At the temperature corresponding to which of the points in Fig. FeO wi...

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  10. Which of the following options are correct?

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  11. In the extraction of aluminium by Hall-Heroult process purified AI(2)O...

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  12. Which of the following statements is correct about the role of substan...

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  13. In the Froth Floatation process, zinc sulphide and lead sulphide can b...

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  14. Common impurities present in bauxite are

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  15. Which of the following ores are concentrated by froth floatation?

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  16. Which of the following reactions occurs during calcination ?

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  17. For the metallurgical process of which of the ores calcined ore can be...

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  18. The main reaction occuring in blast furnace during the extraction of i...

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  19. In which of the following method of purification metal is converted to...

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  20. Which of the following statements are correct?

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