Q. van-Arker method of purification of metals involves converting the metal to a
A) Volatile stable compound
B) Non-volatile stable compound
C) Volatile unstable compound
D) None of the above
Explanation
(a)
$Ti + 2I_{2}\ \ \ \overset{500\ K}{\rightarrow}\begin{matrix}
TiI_{4} \\
\begin{matrix}
volatile \\
stable\ compound
\end{matrix}\
\end{matrix}\overset{1700\ K}{\rightarrow}\begin{matrix}
Ti \\
pure\ metal
\end{matrix} + 2I_{2}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.