Question

The metal that can be purified economically by fractional distillation method is :

• A. $Zn$
• B. $Ni$
• C. $Cu$
• D. $Fe$

Answer 1

The correct option is A $Zn$

Fractional distillation process utilizes the boiling point difference between metal and that of impurity. Using this process, crude zinc containing $Cd,Fe$ and $Pb$ as impurities can be refined.
Option (d) is correct