Which method of purification is represen...

Which method of purification is represented by the equations. ` Ti(s)+2I_(2)(g)overset(523K)(to) TiI_(4)(g)overset(1700K)(to)Ti(s)+2I_(2)(g)` : Cupellation, Poling, van Arkel, Zone refining

A

Cupellation

B

Poling

C

Van Arkel

D

Zone refining

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