Question

The method of zone refining of metals is based
on the principle of
(a) Greater solubility of the impurity in the
molten state than in the solid
(b) Greater mobility of the pure metal than that
of the impurity
(c) Higher melting point of the impurity than
that of the pure metal
(d) Greater noble character of the solid metal
than that of the impurity

Answer 1

Answer :- (c) Higher melting point of the impurity than

(c) Higher melting point of the impurity thanthat of the pure metal.

Answer 2

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(c) Higher melting point

of the impurity than that of

the pure metal