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Write chemical reactions involved in Van...

Write chemical reactions involved in Van Arkel method for refining Titanium.

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The steps of the reaction involved in van Arkel method are:
Crude metal is heated the metal iodine in an evacuated vessel to separate the metal from impurities
`Ti + 2I_(2) to TiI_(4)`
`TiI_(4)` decomposes at 1800 K to both give pure Ti metal and iodine.
`TiI_(4) to Ti + 2I_(2)`
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GURUKUL PUBLICATION - MAHARASHTRA PREVIOUS YEAR PAPERS- JULY 2016-SECTION I
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