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General Principles and Processes of Isolation of Elements — Chemistry STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceChemistryGeneral Principles and Processes of Isolation of Elements2 Marks
Question
Explain the following:
Vapour phase refining method is used for the purification of Ti.
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Answer

Ti reacts with iodine to from TiI$_4$ which is volatile and decomposes tp give Ti at high to give extra titanium.
$\text{Ti}+2\text{I}_{2}\ \xrightarrow{530\text{K}}\text{TiI}_{4}\ \xrightarrow{{1800\text{K}}}\text{Ti}+2\text{I}_{2}$

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