Question

Zone refining is used for the purification of

• A. $Ge$
• B. $Si$
• C. $Ga$
• D. $Se$

Answer 1

Answer: (A), (B), (C)

The correct options are
A $Ge$
B $Si$
C $Ga$

The zone refining method is based on the principle that impurities are more soluble in the melt than the pure metal.

This method effectively removes impurities from semiconducting elements like silicon, germanium, and gallium.
Zone refining is a useful method to get pure $Si,Ge,Ga$.