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Zone refining is based on the principle ...

Zone refining is based on the principle that_______

A

impurities of low boiling metals can be separaed by distillation

B

impurities are more soluble in molten metal than in solid metal

C

different components of a mixture are differently adsorbed on an adosrbent.

D

vapour of volatile compound can be decomposed in pure metal

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ALLEN-METALLURGY-EXERCISE -04
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  2. A number of elements are available in earth's crust but most abundant ...

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  3. Zone refining is based on the principle that

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

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  6. In the metallurgy of aluminium

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

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  10. Below point 'A' FeO can

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

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

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  13. Which of the following options are correct?

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

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

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

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

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