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Van Arkel method of refining zirconi...

Van Arkel method of refining zirconium involves

A

Removing all oxygen and nitrogen impurities

B

Removing CO impurity

C

Removing hydrogen impurity

D

Removing silica impurity

Text Solution

Verified by Experts

The correct Answer is:
A
Impure Zr is heated with iodine to form a volatile compound which is again heated to obtain pure metal. It removes all oxygen and nitrogen impurities.
`Zr("impure")+2I_(2) rarr ZrI_(4) + "heat" rarr Zr ("pure") + 2I_(2)`
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