1.

Zonerefiningisbasedon the principlethat ......... .

Answer»

impuritiesof lowboilingmetalscanbeseparatedby DISTILLATION
IMPURITIESARE moresolublein moltenmetalthan in solidmetal
differentcomponentsofamixtureare differentlyadsorbedon anadsorbent
vapoursofvolatile COMPOUNDCAN bedecomposed in puremetal

SOLUTION :Impuritiesaremoresolublein moltenmetalthan insolidmetal.


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