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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 separated by distillation.

B

impurities are more soluble in molten metal than in solid metal.

C

different components of a mixture are differently absorbed on an adsorbent.

D

Vapours of volatile compound can be decomposed in pure metal.

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The correct Answer is:
B
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