Question
Question: Which one of the following processes involves the principle of fractional crystallisation for the re...
Which one of the following processes involves the principle of fractional crystallisation for the refining of impure metals?
A
Parke’s process
B
Mond’s process
C
Van Arkel process
D
Zone refining
Answer
Zone refining
Explanation
Solution
Zone refining method is based on the principle that an impure molten metal on gradual cooling will deposit crystals of the pure metal, while the impurities will be left in the remaining part of the molten metal.