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Question
Chemistry
The process of zone refining is used in the purification of
Q. The process of zone refining is used in the purification of
2789
214
KCET
KCET 2013
General Principles and Processes of Isolation of Elements
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A
A
l
12%
B
G
e
59%
C
C
u
16%
D
A
g
12%
Solution:
Zone-refining is a method is obtain metals of very high purity. Metals like
S
i
,
G
e
,
G
a
etc., used in semiconductors devices are purified by this method.