The method of zone refining of metals is based upon the principle of___________
A)greater solubility of the impurity in molten state than in solid
B)greater mobility of pure metal than impurity
C. higher melting point of impurity than that of pure metal.
D)greater noble character of solid metal than that of the impurity
Answer:A
The method of zone refining of metals is based upon the principle of___________
A)greater solubility of the impurity in molten state than in solid B)greater mobility of pure metal than impurity C. higher melting point of impurity than that of pure metal. D)greater noble character of solid metal than that of the impurity