Question

(i) What is the principle behind Zone refining' of metal ? Name an element which is refined by this method.

Answer 1

ZONE REFINING:This method is based on the principle that impurities are more soluble in the molten state of metal than in the solid state. Silicon can be refined by this process

Answer 2

This method is based on the principle that impurities are soluble in the molten state of the metal than in the solid state
Ge, Si, B, Ga, etc. are the elements which refined by this method.