Purification And Characterisation Of Organic Compounds Question 137

Question: van Arkel method of purification of metals involves converting the metal to a

Options:

A) volatile stable compound

B) volatile unstable compound

C) non volatile stable compound

D) None of the above

Show Answer

Answer:

Correct Answer: A

Solution:

[a] $ Ti+2I_2\xrightarrow{523K}\underset{\begin{smallmatrix} Volatilestable \\ compound \end{smallmatrix}}{\mathop{TiI_4}} $

$ \xrightarrow{1700K}\underset{Puremetal}{\mathop{Ti}}+2I_2 $