Question
van Arkel method of purification of metals involves converting the metal to a
A.
volatile stable compound
B.
volatile unstable compound
C.
non volatile stable compound
D.
None of the above
Answer :
volatile stable compound
Solution :
\[Ti+2{{I}_{2}}\xrightarrow{523\,K}\underset{\begin{smallmatrix}
\,\,\,\,\,\,\,\,\,\,\text{Volatile} \\
\text{stable compound}
\end{smallmatrix}}{\mathop{Ti{{I}_{4}}}}\,\xrightarrow{1700K}\underset{\text{Pure metal}}{\mathop{Ti}}\,+2{{I}_{2}}\]