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  4. van-Arkel method of purification of metals involves converting the metal to a

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Q. van-Arkel method of purification of metals involves converting the metal to a

Haryana PMTHaryana PMT 2011

Solution:

van-Arkel method of purification of metals involves conversion of an impure metal to a volatile stable compound.
$\underset{\text{impure method}}{Ti} + 2I_2 \xrightarrow{500\,K} \underset{\text{volatile stable compound}}{TiI_4} \xrightarrow{1700\,K} \underset{\text{pure metal}}{Ti} + 2I_2$