. The method of zone refining of metals is based on the principle of:

The method of zone refining of metals is based on the principle of:

(A):Greater mobility of the pure metal than that of impurity.
(B):Higher melting point of the impurity than that of the pure metal.
(C):Greater noble character of the solid metal than that of the impurity
(D):Greater solubility of the impurity in the molten state than in the solid

Best Answer

Correct Answer:

(D): Greater solubility of the impurity in the molten state than in the solid

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