Question:
Match the refining methods (Column I) with metals (Column II).
Correct Option: , 3
Solution:
Liquation is used for $\mathrm{Sn}$, zone refining is used for $\mathrm{Ga}$, mond's process is used for refining of Ni and van Arkel method is used for $\mathrm{Zr}$, So, correct match is
(I) - (c); (II)-(d); (III)-(b); (IV)-(a)