General Principles and Processes of Isolation of Elements - Result Question 17
####17. The method of zone refining of metals is based on the principle of
[2003]
(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
Show Answer
Solution:
- (a) Zone refining is based on the difference in solubility of impurities in molten and solid state of the metal. This method is used for obtaining metals of very high purity.
