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Which of the following pairs of metals u...

Which of the following pairs of metals uis purified by van arkel method?

A

Zr and Ti

B

Ag and Au

C

Ni and Fe

D

Ga and ln

Text Solution

Verified by Experts

The correct Answer is:
A
Zr and Ti are purified by van-Arkel method.
`underset("Impure")(Zr+)2I_(2) overset(600^(@)C)rarrZr I_(4) overset(1800^(@)C)rarr underset("Pure")(Zr+)2I_(2)`
This method is useful for removing all the oxygen and nitrogen present in the form of impurity in certain metals like Zr and Ti.
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