MCQ
Zone$-$refining has been employed for preparing ultra-pure samples of:
- A$Cu$
- B$Zn$
- ✓$Ge$
- D$Ag$
✓
Answer
Correct option: C.
$Ge$
Zone Refining or Fractional Crystallisation is employed to get metal of very high purity i, e. ultra pure samples of $\text{Ge Si, B, Ga, In}.$ This method is based on the fact that impurities are more soluble than the pure metal in the melt.
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