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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 adsorbed on an adsorbent

D

Vapours of volatile compound can be decomposed in pure metal

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The correct Answer is:
B
Zone refining is based on the principle that the impurities are more soluble in molten state than in solid state of the metal.
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